瀝青(qing)是由不同(tong)分子量的(de)碳氫化合(hé)物及其非(fēi)金屬衍生(sheng)物組成的(de)黑褐色複(fú)雜混合物(wu)，呈液态，是(shì)一種防水(shui)防潮和防(fáng)腐的有機(ji)膠凝材料(liào)。用于塗料(liào)、塑料、橡膠(jiāo)等工業以(yi)及鋪築路(lu)面等。 Asphalt is composed of different molecular weight hydrocarbons and non-metallic derivatives of dark brown complex mixture, a liquid, is a kind of waterproof and moistureproof and anticorrosive organic cementing materials.Used in coatings, plastic, rubber and other industrial and paved road, etc. 中文(wen)名 瀝青Chinese name asphalt CAS登(deng)錄号8052-42-4The CAS login number 8052-42-4 EINECS登錄(lu)号232-490-9EINECS registration number 232-490-9 熔 點 485Melting point 485 沸(fèi) 點<470 ℃boiling point < 470 ℃< iv> 水溶性(xing)不溶于水(shuǐ)Water soluble does not dissolve in water 密 度 1.15-1.25Dense degree of 1.15 to 1.25 外 觀(guān)半固體或(huo)液體狀态(tài)Outside view half solid or liquid state 閃 點204.4Flash point 204.4 危險(xiǎn)性描述健(jian)康危害：中(zhōng)等毒性Describe health hazard risk: medium toxicity 來(lái) 源煤和石(shí)油To the source of coal and oil 成 分瀝(li)青質和樹(shu)脂Into asphaltene and resin 含 量99.48%Containing 99.48% 爆(bào)炸下限 30(g/立(lì)方厘米)The lower explosive limit (30 g/cm3) 導(dao)電性能絕(jué)緣體(常溫(wen)下)Conductivity insulator (room temperature) 瀝青屬(shǔ)于憎水性(xing)材料，它不(bu)透水，也幾(ji)乎不溶于(yú)水、丙酮、乙(yi)醚、稀乙醇(chún)，溶于二硫(liu)化碳、四氯(lǜ)化碳、氫氧(yang)化鈉。瀝青(qīng)及其煙氣(qì)對皮膚粘(zhan)膜具有刺(ci)激性，有光(guang)毒作用和(he)緻癌作用(yong)。我國三種(zhǒng)主要瀝青(qīng)的毒性：煤(méi)焦瀝青>頁(ye)岩瀝青>石(shí)油瀝青，前(qián)二者有緻(zhi)癌性。瀝青(qing)的主要皮(pi)膚損害有(yǒu)：光毒性皮(pi)炎，皮損限(xian)于面、頸部(bu)等暴露部(bu)分；黑變病(bing)，皮損常對(dui)稱分布于(yú)暴露部位(wèi)，呈片狀，呈(chéng)褐－深褐－褐(hè)黑色；職業(yè)性痤瘡；疣(you)狀贅生物(wù)及事故引(yin)起的熱燒(shāo)傷。此外，尚(shàng)有頭昏、頭(tou)脹，頭痛、胸(xiōng)悶、乏力、惡(è)心、食欲不(bu)振等全身(shēn)症狀和眼(yǎn) 、鼻、咽部的(de)刺激症狀(zhuang)。Asphalt is hydrophobic material, it impermeable, almost insoluble in water, dilute ethanol, acetone, ether, soluble in carbon disulfide, carbon tetrachloride, sodium hydroxide.Asphalt and flue gas of skin mucous membrane irritation, has the light effect and the effect that cause cancer.China's three major asphalt toxicity: coal tar > > oil shale asphalt asphalt, before both have carcinogenicity.The main skin lesions are: asphalt light contact dermatitis, skin confined to the face, neck and other exposed parts;Melanosis, skin lesions often symmetrical distributed in the exposed parts, plate shaped, brown - deep brown - brown-black;Occupational acne;Verrucous vegetations and the accident cause thermal burns.In addition, there are dizziness, head bilges, headache, chest tightness, fatigue, nausea, loss of appetite and other systemic symptom and eye, nose, pharynx and irritation. 煤焦瀝青(qing)Coal tar 
煤焦瀝青(qing)是煉焦的(de)副産品，即(ji)焦油蒸餾(liú)後殘留在(zài)蒸餾釜内(nèi)的黑色物(wù)質。它與精(jīng)制焦油隻(zhī)是物理性(xing)質有分别(bie)，沒有明顯(xiǎn)的界限，一(yī)般的劃分(fen)方法是規(gui)定軟化點(dian)在26．7℃（立方塊(kuai)法）以下的(de)為焦油，26．7℃以(yi)上的為瀝(li)青。煤焦瀝(lì)青中主要(yào)含有難揮(huī)發的蒽、菲(fēi)、芘等。這些(xie)物質具有(you)毒性，由于(yú)這些成分(fen)的含量不(bu)同，煤焦瀝(lì)青的性質(zhì)也因而不(bu)同。溫度的(de)變化對煤(méi)焦瀝青的(de)影響很大(dà)，冬季容易(yi)脆裂，夏季(jì)容易軟化(hua)。加熱時有(you)特殊氣味(wèi)；加熱到260℃在(zai)5小時以後(hou)，其所含的(de)蒽、菲、芘等(deng)成分就會(huì)揮發出來(lái)。Coal tar is a by-product of coking, namely tar distillation residue in distillation kettle black material.It has respectively with refined tar is only physical properties, there is no clear boundaries, is the way of dividing rules softening point in commonly 26.7 ℃ (cube method) for tar, under 26.7 ℃ above for asphalt.Coal tar mainly contains difficult volatilization of anthracene, phenanthrene, pyrene, etc.These substances have toxic, because the content of these compounds is different, the properties of coal tar are so different.The change of temperature has much effect on the coal tar, winter easy embrittlement, summer is easy to soften.Heating from time to tome special smell;Heated to 260 ℃ after 5 hours, its composition such as anthracene, phenanthrene, pyrene will evaporate. 石油瀝青(qīng)asphalt 石油瀝青(qīng)是原油蒸(zhēng)餾後的殘(can)渣。根據提(tí)煉程度的(de)不同，在常(cháng)溫下成液(yè)體、半固體(tǐ)或固體。石(shí)油瀝青色(se)黑而有光(guāng)澤，具有較(jiào)高的感溫(wēn)性。由于它(tā)在生産過(guò)程中曾經(jing)蒸餾至400℃以(yǐ)上，因而所(suo)含揮發成(chéng)分甚少，但(dan)仍可能有(yǒu)高分子的(de)碳氫化合(he)物未經揮(hui)發出來，這(zhe)些物質或(huo)多或少對(duì)人體健康(kang)是有害的(de)。Petroleum asphalt is after crude distillation residue.Depending on the degree of refining, into a liquid, semi-solid or solid at room temperature.Petroleum pitch dark and luster, has higher heat resistance.Because it had distillation in the production process to more than 400 ℃, thus contained little volatile component, but may still have high polymer without volatile hydrocarbons, which more or less is harmful to human health. 天然瀝青(qing)Natural asphalt 天然瀝青(qīng)儲藏在地(dì)下，有的形(xíng)成礦層或(huò)在地殼表(biǎo)面堆積。這(zhe)種瀝青大(da)都經過天(tiān)然蒸發、氧(yang)化，一般已(yǐ)不含有任(ren)何毒素。Natural asphalt storage in underground, some forming seam or piled up in the earth's crust surface.The asphalt mostly through the natural evaporation and oxidation, generally do not contain any poison. 瀝(li)青材料分(fèn)為地瀝青(qing)和焦油瀝(li)青兩大類(lei)。地瀝青又(yòu)分為天然(rán)瀝青和石(shí)油瀝青，天(tian)然瀝青是(shi)石油滲出(chū)地表經長(zhǎng)期暴露和(he)蒸發後的(de)殘留物；石(shi)油瀝青是(shi)将精制加(jiā)工石油所(suo)殘餘的渣(zha)油，經适當(dāng)的工藝處(chù)理後得到(dào)的産品。焦(jiao)油瀝青是(shì)煤、木材等(děng)有機物幹(gàn)餾加工所(suo)得的焦油(you)經再加工(gong)後的産品(pǐn)。工程中采(cǎi)用的瀝青(qīng)絕大多數(shu)是石油瀝(li)青，石油瀝(lì)青是複雜(zá)的碳氫化(huà)合物與其(qi)非金屬衍(yan)生物組成(cheng)的混合物(wu)。通常瀝青(qīng)閃點在240℃~330℃之(zhi)間，燃點比(bǐ)閃點約高(gāo)3℃~6℃度，因此施(shī)工溫度應(yīng)控制在閃(shǎn)點以下。Asphalt material divided into two categories, pitch and bitumen.Asphalt is divided into natural asphalt and petroleum asphalt, natural bitumen is oil seepage surface after long exposure and evaporation residue;Petroleum asphalt is a residual of residual oil will be refined processing, after appropriate processing products.Bitumen is coal, wood and other organic matter carbonization processing tar after reprocessing of products.Engineering used in the asphalt is the vast majority of asphalt, asphalt is a complex mixture of hydrocarbons with nonmetal derivatives.Usually asphalt flash point between 240 ℃ ~ 330 ℃, flash point is higher than flash point about 3 ℃ ~ 6 ℃ degrees, so the construction temperature should be controlled below the flash point.v 輸(shū)送改性瀝(lì)青泵在開(kai)始運轉前(qián)，往 齒輪泵(bèng)的殼體内(nei)灌滿待輸(shū)送的液體(ti)，便于安全(quán)啟動。若環(huan)境溫度低(dī)于冰點，應(yīng)預先向泵(beng)内通入熱(rè)蒸汽，進行(hang)預熱處理(lǐ)，然後才可(ke)啟動 齒輪(lun)泵。高粘度(dù)泵的旋轉(zhuǎn)方向要與(yǔ)進、出油口(kou)相符。 齒輪(lún)泵若是第(di)一次運行(hang)，或長期閑(xian)置後再使(shǐ)用，最好在(zài)空載或小(xiǎo)負荷情況(kuàng)下先跑合(he)一小時左(zuǒ)右。如果在(zai)跑合階段(duàn)預先覺察(cha)出異常溫(wen)升、洩漏、振(zhèn)動和噪聲(shēng)時，應停機(ji)檢查。高粘(zhān)度 齒輪泵(beng)的支座或(huò)法蘭與其(qí)驅動電機(ji)應采用共(gong)同的安裝(zhuāng)基礎，基礎(chǔ)、法蘭或支(zhī)座均需具(ju)有足夠的(de)剛度，以減(jian)小 齒輪泵(bèng)運轉時産(chǎn)生的振動(dòng)和噪聲。電(dian)動機與 齒(chi)輪泵須用(yòng)彈性聯軸(zhou)器連接，同(tóng)軸度小于(yú)0.1毫米，傾斜(xie)角不得大(dà)于1度。安裝(zhuang)聯軸器時(shi)不得用錘(chui)敲打，以免(miǎn)傷害 齒輪(lun)泵的齒輪(lún)等零件。若(ruò)用帶輪、鍊(liàn)輪等驅動(dong)時應設托(tuo)架支承，以(yǐ)防主動齒(chǐ)輪軸承受(shou)徑向力。緊(jin)固 齒輪泵(bèng)、電動機的(de)地腳螺釘(ding)時，螺釘受(shòu)力應均勻(yun)，連接可靠(kào)。用手轉動(dòng)聯軸器時(shi)，應感覺到(dao) 齒輪泵能(neng)夠輕松地(dì)轉動，沒有(you)卡緊等異(yì)常現象出(chū)現，然後才(cai)可以配管(guan)。High viscosity pump before starting work, to gear pump casing filled with liquid, facilitate safe launch.If the environment temperature is below freezing, should advance to pump into the hot steam, preheating treatment, and then to start the pump.The direction of rotation of the pump with high viscosity, oil outlet in accord.Gear pump is the first run, or long-term idle before using, had better under the condition of no load or small load to run one hour or so.If in the running-in stage in advance detect abnormal temperature rise, leakage, vibration and noise, should stop check.High viscosity gear pump bearing or flange should adopt a common drive motor installationFoundation, foundation, flange or support all needs to have enough rigidity, to reduce the vibration of gear pump is running and noise.Motor and gear pump with elastic shaft coupling, coaxial degree is less than 0.1 mm, Angle shall not be greater than 1 degree.When installing coupling hammer shall not be used, in order to avoid damage of the gear pump gearAnd other parts.If use the belt wheel, wheel, etc, shall set bracket support, in case of driving gear bearing by the radial force.Ground screw fastening gear pump, motor, screw force should be uniform, reliable connection.Turn the coupling with the hand, should feel can easily turn the gear pump, no abnormal phenomenon such as clamping, then can be piping. 輸送改性(xìng)瀝青泵的(de)吸油管道(dào)内徑應足(zú)夠大，并避(bi)免狹窄通(tōng)道或急劇(jù)拐彎、減少(shǎo)彎頭，去除(chu)不必要的(de)閥門、附件(jian)，盡可能地(di)降低泵的(de)安裝高度(dù)，縮短吸油(yóu)管道的長(zhǎng)度，以減少(shǎo)壓力損失(shī)。管接頭等(deng)元件的密(mì)封要良好(hǎo)，以防止空(kong)氣侵入，從(cong)而控制氣(qì)穴與氣蝕(shi)的發生。止(zhi)回閥與安(an)全閥在 齒(chi)輪泵的輸(shu)出管路上(shang)最好安裝(zhuāng)一個止回(huí)閥。這樣在(zai)檢修泵及(ji)輸出管道(dao)時，系統中(zhōng)的液體不(bú)會發生倒(dǎo)流。 齒輪泵(bèng)帶負荷停(ting)車時，亦可(kě)防止泵倒(dao)轉而在其(qi)輸出管道(dào)内産生局(ju)部真空。應(yīng)當注意，出(chū)口止回閥(fá)不能裝反(fan)或出現卡(ka)死現象。高(gāo)粘度泵的(de)出口管路(lù)上還應當(dāng)設置安全(quan)閥等保護(hu)裝置，這樣(yàng)一旦泵的(de)出口通道(dao)發生堵塞(sāi)，就可以打(da)開安全閥(fá)卸壓。安全(quán)閥可以與(yǔ)泵體或泵(bèng)蓋鑄成一(yi)體，也可以(yǐ)單獨裝配(pèi)。對于需要(yào)正反轉的(de)高粘度 齒(chi)輪泵，其進(jìn)出口管路(lu)上均需設(she)置安全閥(fá)。High viscosity gear pump oil suction pipe diameter should be large enough, and to avoid the narrow channel, or a sharp turn, reducing elbow, remove unnecessary valves, fittings, as much as possible to reduce the installation height of pump, shorten the length of the oil suction pipe, in order to reduce the pressure loss.Components, such as pipe joint sealed well, in order to prevent the air intrusion, thus control air-pocket and the occurrence of cavitation.Check valve and relief valve on the output of the gear pump tube had better install a check valve.In the overhaul pump and output pipe, the system of fluid backflow will not occur.Gear pump to stop loading machine, can be in the output pipe to prevent pump reverse, and create a partial vacuum.It should be noted that the outlet check valve cannot be installed backwards or stuck.High viscosity of the pump outlet pipe also shall set up relief valve or other protective device on the road, so that once the clogging pump export channels, can open the relief valve pressure relief.The relief valve can be cast and pump body and pump cover, also can separate assembly.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve. 輸送改性(xing)瀝青泵是(shi)輸送高粘(zhan)度液體的(de) 齒輪泵，應(ying)做到在較(jiào)低的功耗(hao)、較少的洩(xiè)漏、較大的(de)壓力下輸(shu)出最多的(de)流量。在确(que)定所要輸(shū)送的介質(zhi)時，應該嚴(yán)格遵循産(chǎn)品說明書(shū)上的規定(dìng)，盡量使用(yòng)廠家推薦(jian)的流體介(jie)質，并注意(yi)考慮系統(tǒng)的工作溫(wēn)度範圍。當(dāng)希望在某(mou)一較寬的(de)溫度範圍(wei)内使用時(shi)，輸送介質(zhi)的粘度指(zhi)數應該高(gao)些。輸送介(jie)質不僅是(shì)能量傳遞(dì)的中介，而(ér)且也是潤(rùn)滑、密封及(ji)傳熱介質(zhi)。液體粘度(dù)過高會增(zeng)加内摩擦(ca)阻力，降低(di)輸出功率(lǜ)，浪費能量(liàng)，并産生過(guò)高的系統(tǒng)溫度.高粘(zhān)度 齒輪泵(beng)的出口管(guan)路上應當(dāng)設置安全(quán)閥等保護(hù)裝置，這樣(yang)一旦泵的(de)出口通道(dào)發生堵塞(sāi)，就可以打(da)開安全閥(fá)卸壓。對于(yú)需要正反(fǎn)轉的高粘(zhan)度 齒輪泵(bèng)，其進出口(kǒu)管路上均(jun)需設置安(an)全閥。High viscosity pump is conveying liquid with high viscosity gear pump, should be in lower power consumption, less leakage, under the pressure of large output the most traffic.When determining to conveying medium, we should strictly follow the provisions of the product manuals on use manufacturers recommend fluid as far as possible, and pay attention to consider the system operating temperature range.When you want to use in a wide temperature range, medium viscosity index should be higher.Medium is not only the energy transfer intermediary, but also lubrication, sealing and heat transfer medium.Liquid viscosity is too high will increase internal friction resistance, lower output power, waste of energy, and generate high temperature system. High viscosity gear pump outlet pipe shall set up relief valve or other protective device on the road, so once the clogging pump export channels, can open the relief valve pressure relief.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve. 1、工作(zuò)壓力的選(xuǎn)定1, select the work pressure 輸送改(gai)性瀝青泵(beng)額定的壓(ya)力是指泵(beng)連續工作(zuo)時的最高(gao)許用壓力(li)，而其工作(zuo)壓力則決(jue)定于外部(bu)負載，安裝(zhuāng)和調試的(de)壽命與其(qi)工作壓力(li)直接相關(guān)。對于不頻(pin)繁工作的(de) 齒輪泵，其(qí)工作壓力(lì)可取為泵(beng)的額定壓(yā)力，考慮到(dào)産品質量(liàng)不同，最好(hǎo)将額定壓(yā)力降低20%～30%使(shi)用。對于經(jing)常工作于(yu)較高壓力(lì)下的 齒輪(lún)泵，其工作(zuò)壓力應比(bi)泵的額定(ding)壓力低1～2個(gè)壓力級。石(shí)油化工設(she)備常常是(shi)24小時連續(xu)運轉，這時(shí)泵的工作(zuò)壓力應該(gāi)取得比額(e)定壓力低(di)得多，且工(gong)作轉速也(ye)應該低于(yu)額定轉速(su)。如果高粘(zhan)度 齒輪泵(beng)的工作壓(yā)力調整過(guò)高，則會使(shi) 齒輪泵在(zai)超負荷下(xià)運行。High viscosity pump rated pressure refers to the maximum allowable pump continuous work pressure, and its working pressure is determined by the external load, installation and commissioning of life is directly related with work pressure.For not frequent work gear pump, the working pressure is desirable for the rated pressure of the pump, taking the quality into consideration, it is best to used pressure rated lower 20% ~ 30%.For often work under high pressure gear pump, the working pressure shall be lower than the rated pressure of the pump 1 ~ 2 pressure level.Petrochemical equipment are often 24 hours of continuous operation, and at this time of the pump working pressure should be obtained was much lower than the rated pressure, and the work speed should be lower than the rated speed.If the high viscosity gear pump high pressure adjustment, will make the pump running under overload. 2.安裝(zhuang)與試運轉(zhuǎn)2. Installation and commissioning 輸送改性(xing)瀝青泵的(de)支座或法(fa)蘭與其驅(qū)動電機應(ying)采用共同(tong)的安裝基(ji)礎，基礎、法(fa)蘭或支座(zuò)均需具有(you)足夠的剛(gāng)度，以減小(xiao) 齒輪泵運(yùn)轉時産生(sheng)的振動和(he)噪聲。電動(dong)機與 齒輪(lún)泵須用彈(dàn)性聯軸器(qì)連接，同軸(zhóu)度小于0.1毫(hao)米，傾斜角(jiǎo)不得大于(yu)1度。安裝聯(lián)軸器時不(bú)得用錘敲(qiao)打，以免傷(shang)害 齒輪泵(beng)的齒輪等(děng)零件。若用(yong)帶輪、鍊輪(lún)等驅動時(shi)應設托架(jià)支承，以防(fang)主動齒輪(lun)軸承受徑(jing)向力。緊固(gu) 齒輪泵、電(dian)動機的地(dì)腳螺釘時(shí)，螺釘受力(lì)應均勻，連(lián)接可靠。用(yòng)手轉動聯(lián)軸器時，應(ying)感覺到 齒(chi)輪泵能夠(gou)輕松地轉(zhuan)動，沒有卡(ka)緊等異常(chang)現象出現(xian)，然後才可(kě)以配管。高(gāo)粘度 齒輪(lún)泵的吸油(yóu)管道内徑(jìng)應足夠大(dà)，并避免狹(xiá)窄通道或(huò)急劇拐彎(wān)、彎頭，去除(chu)不必要的(de)閥門、附件(jian)，盡可能地(dì)降低泵的(de)安裝高度(dù)，縮短吸油(you)管道的長(zhǎng)度，以減少(shǎo)壓力損失(shi)。管接頭等(deng)元件的密(mi)封要良好(hao)，以防止空(kong)氣侵入，從(cong)而控制氣(qì)穴與氣蝕(shi)的發生。在(zài)開始運轉(zhuǎn)前，往 齒輪(lun)泵的殼體(ti)内灌滿待(dài)輸送的液(ye)體，便于安(an)全動。若環(huán)境溫度低(di)于冰點，應(ying)預先向泵(beng)内通入熱(rè)蒸汽，進行(hang)預熱處理(lǐ)，然後才可(ke)啟動 齒輪(lún)泵。 齒輪泵(bèng)的旋轉方(fāng)向要與進(jin)、出油口相(xiang)符。 齒輪泵(beng)若是第一(yī)次運行，或(huò)長期閑置(zhi)後再使用(yong)，最好在空(kong)載或小負(fù)荷情況下(xia)先跑合一(yi)小時左右(yòu)。如果在跑(pǎo)合階段預(yù)先覺出異(yi)常溫升、洩(xie)漏、振動和(hé)噪聲時，應(ying)機檢查。高(gāo)粘度泵的(de)出口管路(lù)上還應當(dāng)設置安全(quan)閥等保護(hu)裝置，這樣(yang)一旦泵的(de)出口通道(dào)發生堵塞(sāi)，就可以打(da)開安全閥(fa)卸壓。對于(yú)需要正反(fǎn)轉的高粘(zhān)度 齒輪泵(beng)，其進出口(kǒu)管路上均(jun1)需設置安(ān)全閥。High viscosity pump bearing or flange and its drive motor should use common installation basis, foundation, flange or support all needs to have enough rigidity, to reduce the vibration of gear pump is running and noise.Motor and gear pump with elastic shaft coupling, coaxial degree is less than 0.1 mm, Angle shall not be greater than 1 degree.When installing coupling hammer shall not be used, in order to avoid damage gear and other parts of the gear pump.If use the belt wheel, wheel, etc, shall set bracket support, in case of driving gear bearing by the radial force.Ground screw fastening gear pump, motor, screw force should be uniform, reliable connection.Turn the coupling with the hand, should feel can easily turn the gear pump, no abnormal phenomenon such as clamping, then can be piping.High viscosity gear pump oil suction pipe diameter should be large enough, and to avoid the narrow channel, or a sharp bend, bend, remove unnecessary valves, fittings, as much as possible to reduce the installation height of pump, shorten the length of the oil suction pipe, in order to reduce the pressure loss.Components, such as pipe joint sealed well, in order to prevent the air intrusion, thus control air-pocket and the occurrence of cavitation.Before starting operation, to gear pump casing filled with liquid, easy to safety.If the environment temperature is below freezing, should advance to pump into the hot steam, preheating treatment, and then to start the pump.Direction of rotation of the gear pump, oil outlet in accord.Gear pump is the first run, or long-term idle before using, had better under the condition of no load or small load to run one hour or so.If in the running-in stage in advance the abnormal temperature rise, leakage, vibration and noise, should machine inspection.High viscosity of the pump outlet pipe also shall set up relief valve or other protective device on the road, so that once the clogging pump export channels, can open the relief valve pressure relief.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve. | 2CY-3.3/0.33齒輪(lun)泵 | 河北盛(sheng)華化工有(yǒu)限公司 | | SMH40R38E6.7W23三(sān)螺杆泵 | 河(hé)北精信化(huà)工集團有(you)限公司 | | 2CY-8/0.33齒(chi)輪泵 | 四川(chuan)川恒化工(gong)股份有限(xiàn)公司 | | 2CY-12/0.33齒輪(lun)泵 | 中國平(píng)煤能源化(huà)工集團飛(fei)行化工有(yǒu)限公司 | | SNF210R46U12.1W2泵頭 | 通(tōng)化化工股(gǔ)份有限公(gōng)司 | | 2CY-29/0.36齒輪泵(bèng) | 浙江華泰(tài)塑膠股份(fen)有限公司(sī) | | SPF20R38G10W21三螺杆(gan)泵頭 | 甘肅(su)銀達化工(gong)有限公司(si) | | 2CY-38/0.28齒輪泵 | 臨(lín)沂久泰能(neng)源化工有(yǒu)限公司 | | 2CY-58/0.28齒(chǐ)輪泵 | 南甯(ning)化工股份(fèn)有限公司(sī) | | SPF20R38G10FW21三螺杆(gan)泵頭 | 湖北(bei)嘉輝化工(gōng)集團有限(xian)公司 | | SPF20R38G10FW21三(sān)螺杆泵頭(tou) | 山西同世(shì)達煤化工(gōng)集團有限(xian)公司 | | NYP-220 | 大連(lián)齊化化工(gōng)有限公司(sī) | | NYP-320 | 江蘇淮河(he)化工有限(xian)公司 | | SPF20R38G10FW21三(san)螺杆泵頭(tóu) | 德州實華(huá)化工有限(xian)公司 | | SPF20R38G10W21三螺杆泵(bèng)船用 | 山東(dōng)海王化工(gong)股份有限(xiàn)公司 | | KCB-290齒輪(lún)泵 | 山東濰(wéi)坊潤豐化(huà)工有限公(gōng)司 | | SPF20R38G10W2三(san)螺杆泵船(chuan)用 | 張家港(gǎng)化工機械(xie)股份有限(xiàn)公司 | | SPF20R38G10W2三螺(luo)杆泵 | 大連(lián)金州重型(xing)機器有限(xian)公司 | | G20-1V-W101單螺(luo)杆泵 | 大慶(qing)華科股份(fen)有限公司(si) | | SNH40R54E6.7W21三螺杆(gǎn)泵頭 | 成都(dou)華融化工(gōng)有限公司(sī) | | SNH40R54E6.7W21三螺杆(gǎn)泵頭 | 石家(jiā)莊白龍化(huà)工股份有(yǒu)限公司 | | 2CY-18/0.36齒(chi)輪泵 | 上海(hǎi)聯恒異氰(qing)酸酯有限(xian)公司 | | 齒輪(lun)泵">KCB-300齒輪泵(bèng) | 南京化纖(xiān)股份有限(xiàn)公司 | | SNH80R54U12.1W2三(san)螺杆泵頭(tou) | 鎮江李長(zhǎng)榮綜合石(shí)化工業有(you)限公司 |
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