出售螺桿泵泵頭,滑油泵型號(hào)SNH940R50E6.7W21
轉(zhuǎn)子泵與螺桿泵的顆粒物通過(guò)能力比較：
轉(zhuǎn)子泵
轉(zhuǎn)子和泵殼之間的空間比較大
型號(hào): AL PL CL FL XL
粒徑 (mm): 25 40 50 70 100
寬大的過(guò)流腔體不存在堵塞的問(wèn)題，轉(zhuǎn)子會(huì)對(duì)泵內(nèi)不斷的清刷，所以沉淀性的物質(zhì)對(duì)轉(zhuǎn)子泵沒(méi)有危險(xiǎn)。
螺桿泵
一般襯套和螺桿之間的空間有限，大的固體顆粒會(huì)卡壞萬(wàn)向節(jié)。
轉(zhuǎn)子泵與螺桿泵的檢修比較：
轉(zhuǎn)子泵檢修很容易
無(wú)須拆卸管道，只需要很少的專(zhuān)用工具，很小的空間，很小的人力，無(wú)須專(zhuān)業(yè)人員。
螺桿泵不易檢修
每次維護(hù)都需要拆開(kāi)并移走管道，萬(wàn)向節(jié)，襯套，螺桿等部分都要專(zhuān)用工具才能拆開(kāi)，維修工作需要較大的空間才能完成，2個(gè)人以上才能完成維護(hù)工作。
出售螺桿泵泵頭,滑油泵型號(hào)SNH940R50E6.7W21
SNH臥式三螺桿泵型號(hào)(SNH臥式安裝、SNS立式安裝、SNF法蘭式安裝、SNE插裝式安裝)(R為右旋，L為左旋)
SNH40R38E6.7W21 SNH40R38U8W21 SNH40R38U12.1W21 SNH40R38UHJ92NW21 SNH40R38UM3NW21 SNH40R38K2W21
SNH40R46E6.7W21 SNH40R46U8W21 SNH40R46U12.1W21 SNH40R46UHJ92NW21 SNH40R46UM3NW21 SNH40R46K2W21
SNH40R54E6.7W21 SNH40R54U8W21 SNH40R54U12.1W21 SNH40R54UHJ92NW21 SNH40R54UM3NW21 SNH40R54K2W21
SNH80R36E6.7W21 SNH80R36U8W21 SNH80R36U12.1W21 SNH80R36UHJ92NW21 SNH80R36UM3NW21 SNH80R36K2W21
SNH80R42E6.7W21 SNH80R42U8W21 SNH80R42U12.1W21 SNH80R42UHJ92NW21 SNH80R42UM3NW21 SNH80R42K2W21
SNH80R46E6.7W21 SNH80R46U8W21 SNH80R46U12.1W21 SNH80R46UHJ92NW21 SNH80R46UM3NW21 SNH80R46K2W21
SNH80R54E6.7W21 SNH80R54U8W21 SNH80R54U12.1W21 SNH80R54UHJ92NW21 SNH80R54UM3NW21 SNH80R54K2W21
SNH120R42E6.7W21 SNH120R42U8W21 SNH120R42U12.1W21 SNH120R42UHJ92NW21 SNH120R42UM3NW21 SNH120R42K2W21
SNH120R46E6.7W21 SNH120R46U8W21 SNH120R46U12.1W21 SNH120R46UHJ92NW21 SNH120R46UM3NW21 SNH120R46K2W21
SNH120R54E6.7W21 SNH120R54U8W21 SNH120R54U12.1W21 SNH120R54UHJ92NW21 SNH120R54UM3NW21 SNH120R54K2W21
SNH210R40E6.7W21 SNH210R40U8W21 SNH210R40U12.1W21 SNH210R40UHJ92NW21 SNH210R40UM3NW21 SNH210R40K2W21
SNH210R46E6.7W21 SNH210R46U8W21 SNH210R46U12.1W21 SNH210R46UHJ92NW21 SNH210R46UM3NW21 SNH210R46K2W21
SNH210R54E6.7W21 SNH210R54U8W21 SNH210R54U12.1W21 SNH210R54UHJ92NW21 SNH210R54UM3NW21 SNH210R54K2W21
SNH280R43E6.7W21 SNH280R43U8W21 SNH280R43U12.1W21 SNH280R43UHJ92NW21 SNH280R43UM3NW21 SNH280R43K2W21
SNH280R46E6.7W21 SNH280R46U8W21 SNH280R46U12.1W21 SNH280R46UHJ92NW21 SNH280R46UM3NW21 SNH280R46K2W21
SNH280R54E6.7W21 SNH280R54U8W21 SNH280R54U12.1W21 SNH280R54UHJ92NW21 SNH280R54UM3NW21 SNH280R54K2W21
SNH440R40E6.7W21 SNH440R40U8W21 SNH440R40U12.1W21 SNH440R40UHJ92NW21 SNH440R40UM3NW21 SNH440R40K2W21
SNH440R42E6.7W21 SNH440R42U8W21 SNH440R42U12.1W21 SNH440R42UHJ92NW21 SNH440R42UM3NW21 SNH440R42K2W21
SNH440R46E6.7W21 SNH440R46U8W21 SNH440R46U12.1W21 SNH440R46UHJ92NW21 SNH440R46UM3NW21 SNH440R46K2W21
SNH440R54E6.7W21 SNH440R54U8W21 SNH440R54U12.1W21 SNH440R54UHJ92NW21 SNH440R54UM3NW21 SNH440R54K2W21
SNH660R40E6.7W21 SNH660R40U8W21 SNH660R40U12.1W21 SNH660R40UHJ92NW21 SNH660R40UM3NW21 SNH660R40K2W21
SNH660R44E6.7W21 SNH660R44U8W21 SNH660R44U12.1W21 SNH660R44UHJ92NW21 SNH660R44UM3NW21 SNH660R44K2W21
SNH660R46E6.7W21 SNH660R46U8W21 SNH660R46U12.1W21 SNH660R46UHJ92NW21 SNH660R46UM3NW21 SNH660R46K2W21
SNH660R51E6.7W21 SNH660R51U8W21 SNH660R51U12.1W21 SNH660R51UHJ92NW21 SNH660R51UM3NW21 SNH660R51K2W21
SNH660R54E6.7W21 SNH660R54U8W21 SNH660R54U12.1W21 SNH660R54UHJ92NW21 SNH660R54UM3NW21 SNH660R54K2W21
SNH940R42E6.7W21 SNH940R42U8W21 SNH940R42U12.1W21 SNH940R42UHJ92NW21 SNH940R42UM3NW21 SNH940R42K2W21
SNH940R46E6.7W21 SNH940R46U8W21 SNH940R46U12.1W21 SNH940R46UHJ92NW21 SNH940R46UM3NW21 SNH940R46K2W21
SNH940R50E6.7W21 SNH940R50U8W21 SNH940R50U12.1W21 SNH940R50UHJ92NW21 SNH940R50UM3NW21 SNH940R50K2W21
SNH940R54E6.7W21 SNH940R54U8W21 SNH940R54U12.1W21 SNH940R54UHJ92NW21 SNH940R54UM3NW21 SNH940R54K2W21
SNH1300R38E6.7W21 SNH1300R38U8W21 SNH1300R38U12.1W21 SNH1300R38UHJ92NW21 SNH1300R38UM3NW21 SNH1300R38K2W21
SNH1300R42E6.7W21 SNH1300R42U8W21 SNH1300R42U12.1W21 SNH1300R42UHJ92NW21 SNH1300R42UM3NW21 SNH1300R42K2W21
SNH1300R46E6.7W21 SNH1300R46U8W21 SNH1300R46U12.1W21 SNH1300R46UHJ92NW21 SNH1300R46UM3NW21 SNH1300R46K2W21
SNH1300R54E6.7W21 SNH1300R54U8W21 SNH1300R54U12.1W21 SNH1300R54UHJ92NW21 SNH1300R54UM3NW21 SNH1300R54K2W21
SNH1700R42E6.7W21 SNH1700R42U8W21 SNH1700R42U12.1W21 SNH1700R42UHJ92NW21 SNH1700R42UM3NW21 SNH1700R42K2W21
SNH1700R46E6.7W21 SNH1700R46U8W21 SNH1700R46U12.1W21 SNH1700R46UHJ92NW21 SNH1700R46UM3NW21 SNH1700R46K2W21
SNH2200R42E6.7W21 SNH2200R42U8W21 SNH2200R42U12.1W21 SNH2200R42UHJ92NW21 SNH2200R42UM3NW21 SNH2200R42K2W21
SNH2200R46E6.7W21 SNH2200R46U8W21 SNH2200R46U12.1W21 SNH2200R46UHJ92NW21 SNH2200R46UM3NW21 SNH2200R46K2W21
SNH2900R40E6.7W21 SNH2900R40U8W21 SNH2900R40U12.1W21 SNH2900R40UHJ92NW21 SNH2900R40UM3NW21 SNH2900R40K2W21
SNH2900R46E6.7W21 SNH2900R46U8W21 SNH2900R46U12.1W21 SNH2900R46UHJ92NW21 SNH2900R46UM3NW21 SNH2900R46K2W21
SNH3600R46E6.7W21 SNH3600R46U8W21 SNH3600R46U12.1W21 SNH3600R46UHJ92NW21 SNH3600R46UM3NW21 SNH3600R46K2W21
SNH5300R46E6.7W21 SNH5300R46U8W21 SNH5300R46U12.1W21 SNH5300R46UHJ92NW21 SNH5300R46UM3NW21 SNH5300R46K2W21
SNH40R38E6.7W23 SNH40R38U8W23 SNH40R38U12.1W23 SNH40R38UHJ92NW23 SNH40R38UM3NW23 SNH40R38K2W23
SNH40R46E6.7W23 SNH40R46U8W23 SNH40R46U12.1W23 SNH40R46UHJ92NW23 SNH40R46UM3NW23 SNH40R46K2W23
SNH40R54E6.7W23 SNH40R54U8W23 SNH40R54U12.1W23 SNH40R54UHJ92NW23 SNH40R54UM3NW23 SNH40R54K2W23
SNH80R36E6.7W23 SNH80R36U8W23 SNH80R36U12.1W23 SNH80R36UHJ92NW23 SNH80R36UM3NW23 SNH80R36K2W23
SNH80R42E6.7W23 SNH80R42U8W23 SNH80R42U12.1W23 SNH80R42UHJ92NW23 SNH80R42UM3NW23 SNH80R42K2W23
SNH80R46E6.7W23 SNH80R46U8W23 SNH80R46U12.1W23 SNH80R46UHJ92NW23 SNH80R46UM3NW23 SNH80R46K2W23
SNH80R54E6.7W23 SNH80R54U8W23 SNH80R54U12.1W23 SNH80R54UHJ92NW23 SNH80R54UM3NW23 SNH80R54K2W23
SNH120R42E6.7W23 SNH120R42U8W23 SNH120R42U12.1W23 SNH120R42UHJ92NW23 SNH120R42UM3NW23 SNH120R42K2W23
SNH120R46E6.7W23 SNH120R46U8W23 SNH120R46U12.1W23 SNH120R46UHJ92NW23 SNH120R46UM3NW23 SNH120R46K2W23
SNH120R54E6.7W23 SNH120R54U8W23 SNH120R54U12.1W23 SNH120R54UHJ92NW23 SNH120R54UM3NW23 SNH120R54K2W23
SNH210R40E6.7W23 SNH210R40U8W23 SNH210R40U12.1W23 SNH210R40UHJ92NW23 SNH210R40UM3NW23 SNH210R40K2W23
SNH210R46E6.7W23 SNH210R46U8W23 SNH210R46U12.1W23 SNH210R46UHJ92NW23 SNH210R46UM3NW23 SNH210R46K2W23
SNH210R54E6.7W23 SNH210R54U8W23 SNH210R54U12.1W23 SNH210R54UHJ92NW23 SNH210R54UM3NW23 SNH210R54K2W23
SNH280R43E6.7W23 SNH280R43U8W23 SNH280R43U12.1W23 SNH280R43UHJ92NW23 SNH280R43UM3NW23 SNH280R43K2W23
SNH280R46E6.7W23 SNH280R46U8W23 SNH280R46U12.1W23 SNH280R46UHJ92NW23 SNH280R46UM3NW23 SNH280R46K2W23
SNH280R54E6.7W23 SNH280R54U8W23 SNH280R54U12.1W23 SNH280R54UHJ92NW23 SNH280R54UM3NW23 SNH280R54K2W23
SNH440R40E6.7W23 SNH440R40U8W23 SNH440R40U12.1W23 SNH440R40UHJ92NW23 SNH440R40UM3NW23 SNH440R40K2W23
SNH440R42E6.7W23 SNH440R42U8W23 SNH440R42U12.1W23 SNH440R42UHJ92NW23 SNH440R42UM3NW23 SNH440R42K2W23
SNH440R46E6.7W23 SNH440R46U8W23 SNH440R46U12.1W23 SNH440R46UHJ92NW23 SNH440R46UM3NW23 SNH440R46K2W23
SNH440R54E6.7W23 SNH440R54U8W23 SNH440R54U12.1W23 SNH440R54UHJ92NW23 SNH440R54UM3NW23 SNH440R54K2W23
SNH660R40E6.7W23 SNH660R40U8W23 SNH660R40U12.1W23 SNH660R40UHJ92NW23 SNH660R40UM3NW23 SNH660R40K2W23
SNH660R44E6.7W23 SNH660R44U8W23 SNH660R44U12.1W23 SNH660R44UHJ92NW23 SNH660R44UM3NW23 SNH660R44K2W23
SNH660R46E6.7W23 SNH660R46U8W23 SNH660R46U12.1W23 SNH660R46UHJ92NW23 SNH660R46UM3NW23 SNH660R46K2W23
SNH660R51E6.7W23 SNH660R51U8W23 SNH660R51U12.1W23 SNH660R51UHJ92NW23 SNH660R51UM3NW23 SNH660R51K2W23
SNH660R54E6.7W23 SNH660R54U8W23 SNH660R54U12.1W23 SNH660R54UHJ92NW23 SNH660R54UM3NW23 SNH660R54K2W23
SNH940R42E6.7W23 SNH940R42U8W23 SNH940R42U12.1W23 SNH940R42UHJ92NW23 SNH940R42UM3NW23 SNH940R42K2W23
SNH940R46E6.7W23 SNH940R46U8W23 SNH940R46U12.1W23 SNH940R46UHJ92NW23 SNH940R46UM3NW23 SNH940R46K2W23
SNH940R50E6.7W23 SNH940R50U8W23 SNH940R50U12.1W23 SNH940R50UHJ92NW23 SNH940R50UM3NW23 SNH940R50K2W23
SNH940R54E6.7W23 SNH940R54U8W23 SNH940R54U12.1W23 SNH940R54UHJ92NW23 SNH940R54UM3NW23 SNH940R54K2W23
SNH1300R38E6.7W23 SNH1300R38U8W23 SNH1300R38U12.1W23 SNH1300R38UHJ92NW23 SNH1300R38UM3NW23 SNH1300R38K2W23
SNH1300R42E6.7W23 SNH1300R42U8W23 SNH1300R42U12.1W23 SNH1300R42UHJ92NW23 SNH1300R42UM3NW23 SNH1300R42K2W23
SNH1300R46E6.7W23 SNH1300R46U8W23 SNH1300R46U12.1W23 SNH1300R46UHJ92NW23 SNH1300R46UM3NW23 SNH1300R46K2W23
SNH1300R54E6.7W23 SNH1300R54U8W23 SNH1300R54U12.1W23 SNH1300R54UHJ92NW23 SNH1300R54UM3NW23 SNH1300R54K2W23
SNH1700R42E6.7W23 SNH1700R42U8W23 SNH1700R42U12.1W23 SNH1700R42UHJ92NW23 SNH1700R42UM3NW23 SNH1700R42K2W23
SNH1700R46E6.7W23 SNH1700R46U8W23 SNH1700R46U12.1W23 SNH1700R46UHJ92NW23 SNH1700R46UM3NW23 SNH1700R46K2W23
SNH2200R42E6.7W23 SNH2200R42U8W23 SNH2200R42U12.1W23 SNH2200R42UHJ92NW23 SNH2200R42UM3NW23 SNH2200R42K2W23
SNH2200R46E6.7W23 SNH2200R46U8W23 SNH2200R46U12.1W23 SNH2200R46UHJ92NW23 SNH2200R46UM3NW23 SNH2200R46K2W23
SNH2900R40E6.7W23 SNH2900R40U8W23 SNH2900R40U12.1W23 SNH2900R40UHJ92NW23 SNH2900R40UM3NW23 SNH2900R40K2W23
SNH2900R46E6.7W23 SNH2900R46U8W23 SNH2900R46U12.1W23 SNH2900R46UHJ92NW23 SNH2900R46UM3NW23 SNH2900R46K2W23
SNH3600R46E6.7W23 SNH3600R46U8W23 SNH3600R46U12.1W23 SNH3600R46UHJ92NW23 SNH3600R46UM3NW23 SNH3600R46K2W23
SNH5300R46E6.7W23 SNH5300R46U8W23 SNH5300R46U12.1W23 SNH5300R46UHJ92NW23 SNH5300R46UM3NW23 SNH5300R46K2W23
SNH40R38E6.7W2 SNH40R38U8W2 SNH40R38U12.1W2 SNH40R38UHJ92NW2 SNH40R38UM3NW2 SNH40R38K2W2
SNH40R46E6.7W2 SNH40R46U8W2 SNH40R46U12.1W2 SNH40R46UHJ92NW2 SNH40R46UM3NW2 SNH40R46K2W2
SNH40R54E6.7W2 SNH40R54U8W2 SNH40R54U12.1W2 SNH40R54UHJ92NW2 SNH40R54UM3NW2 SNH40R54K2W2
SNH80R36E6.7W2 SNH80R36U8W2 SNH80R36U12.1W2 SNH80R36UHJ92NW2 SNH80R36UM3NW2 SNH80R36K2W2
SNH80R42E6.7W2 SNH80R42U8W2 SNH80R42U12.1W2 SNH80R42UHJ92NW2 SNH80R42UM3NW2 SNH80R42K2W2
SNH80R46E6.7W2 SNH80R46U8W2 SNH80R46U12.1W2 SNH80R46UHJ92NW2 SNH80R46UM3NW2 SNH80R46K2W2
SNH80R54E6.7W2 SNH80R54U8W2 SNH80R54U12.1W2 SNH80R54UHJ92NW2 SNH80R54UM3NW2 SNH80R54K2W2
SNH120R42E6.7W2 SNH120R42U8W2 SNH120R42U12.1W2 SNH120R42UHJ92NW2 SNH120R42UM3NW2 SNH120R42K2W2
SNH120R46E6.7W2 SNH120R46U8W2 SNH120R46U12.1W2 SNH120R46UHJ92NW2 SNH120R46UM3NW2 SNH120R46K2W2
SNH120R54E6.7W2 SNH120R54U8W2 SNH120R54U12.1W2 SNH120R54UHJ92NW2 SNH120R54UM3NW2 SNH120R54K2W2
SNH210R40E6.7W2 SNH210R40U8W2 SNH210R40U12.1W2 SNH210R40UHJ92NW2 SNH210R40UM3NW2 SNH210R40K2W2
SNH210R46E6.7W2 SNH210R46U8W2 SNH210R46U12.1W2 SNH210R46UHJ92NW2 SNH210R46UM3NW2 SNH210R46K2W2
SNH210R54E6.7W2 SNH210R54U8W2 SNH210R54U12.1W2 SNH210R54UHJ92NW2 SNH210R54UM3NW2 SNH210R54K2W2
SNH280R43E6.7W2 SNH280R43U8W2 SNH280R43U12.1W2 SNH280R43UHJ92NW2 SNH280R43UM3NW2 SNH280R43K2W2
SNH280R46E6.7W2 SNH280R46U8W2 SNH280R46U12.1W2 SNH280R46UHJ92NW2 SNH280R46UM3NW2 SNH280R46K2W2
SNH280R54E6.7W2 SNH280R54U8W2 SNH280R54U12.1W2 SNH280R54UHJ92NW2 SNH280R54UM3NW2 SNH280R54K2W2
SNH440R40E6.7W2 SNH440R40U8W2 SNH440R40U12.1W2 SNH440R40UHJ92NW2 SNH440R40UM3NW2 SNH440R40K2W2
SNH440R42E6.7W2 SNH440R42U8W2 SNH440R42U12.1W2 SNH440R42UHJ92NW2 SNH440R42UM3NW2 SNH440R42K2W2
SNH440R46E6.7W2 SNH440R46U8W2 SNH440R46U12.1W2 SNH440R46UHJ92NW2 SNH440R46UM3NW2 SNH440R46K2W2
SNH440R54E6.7W2 SNH440R54U8W2 SNH440R54U12.1W2 SNH440R54UHJ92NW2 SNH440R54UM3NW2 SNH440R54K2W2
SNH660R40E6.7W2 SNH660R40U8W2 SNH660R40U12.1W2 SNH660R40UHJ92NW2 SNH660R40UM3NW2 SNH660R40K2W2
SNH660R44E6.7W2 SNH660R44U8W2 SNH660R44U12.1W2 SNH660R44UHJ92NW2 SNH660R44UM3NW2 SNH660R44K2W2
SNH660R46E6.7W2 SNH660R46U8W2 SNH660R46U12.1W2 SNH660R46UHJ92NW2 SNH660R46UM3NW2 SNH660R46K2W2
SNH660R51E6.7W2 SNH660R51U8W2 SNH660R51U12.1W2 SNH660R51UHJ92NW2 SNH660R51UM3NW2 SNH660R51K2W2
SNH660R54E6.7W2 SNH660R54U8W2 SNH660R54U12.1W2 SNH660R54UHJ92NW2 SNH660R54UM3NW2 SNH660R54K2W2
SNH940R42E6.7W2 SNH940R42U8W2 SNH940R42U12.1W2 SNH940R42UHJ92NW2 SNH940R42UM3NW2 SNH940R42K2W2
SNH940R46E6.7W2 SNH940R46U8W2 SNH940R46U12.1W2 SNH940R46UHJ92NW2 SNH940R46UM3NW2 SNH940R46K2W2
SNH940R50E6.7W2 SNH940R50U8W2 SNH940R50U12.1W2 SNH940R50UHJ92NW2 SNH940R50UM3NW2 SNH940R50K2W2
SNH940R54E6.7W2 SNH940R54U8W2 SNH940R54U12.1W2 SNH940R54UHJ92NW2 SNH940R54UM3NW2 SNH940R54K2W2
SNH1300R38E6.7W2 SNH1300R38U8W2 SNH1300R38U12.1W2 SNH1300R38UHJ92NW2 SNH1300R38UM3NW2 SNH1300R38K2W2
SNH1300R42E6.7W2 SNH1300R42U8W2 SNH1300R42U12.1W2 SNH1300R42UHJ92NW2 SNH1300R42UM3NW2 SNH1300R42K2W2
SNH1300R46E6.7W2 SNH1300R46U8W2 SNH1300R46U12.1W2 SNH1300R46UHJ92NW2 SNH1300R46UM3NW2 SNH1300R46K2W2
SNH1300R54E6.7W2 SNH1300R54U8W2 SNH1300R54U12.1W2 SNH1300R54UHJ92NW2 SNH1300R54UM3NW2 SNH1300R54K2W2
SNH1700R42E6.7W2 SNH1700R42U8W2 SNH1700R42U12.1W2 SNH1700R42UHJ92NW2 SNH1700R42UM3NW2 SNH1700R42K2W2
SNH1700R46E6.7W2 SNH1700R46U8W2 SNH1700R46U12.1W2 SNH1700R46UHJ92NW2 SNH1700R46UM3NW2 SNH1700R46K2W2
SNH2200R42E6.7W2 SNH2200R42U8W2 SNH2200R42U12.1W2 SNH2200R42UHJ92NW2 SNH2200R42UM3NW2 SNH2200R42K2W2
SNH2200R46E6.7W2 SNH2200R46U8W2 SNH2200R46U12.1W2 SNH2200R46UHJ92NW2 SNH2200R46UM3NW2 SNH2200R46K2W2
SNH2900R40E6.7W2 SNH2900R40U8W2 SNH2900R40U12.1W2 SNH2900R40UHJ92NW2 SNH2900R40UM3NW2 SNH2900R40K2W2
SNH2900R46E6.7W2 SNH2900R46U8W2 SNH2900R46U12.1W2 SNH2900R46UHJ92NW2 SNH2900R46UM3NW2 SNH2900R46K2W2
SNH3600R46E6.7W2 SNH3600R46U8W2 SNH3600R46U12.1W2 SNH3600R46UHJ92NW2 SNH3600R46UM3NW2 SNH3600R46K2W2
SNH5300R46E6.7W2 SNH5300R46U8W2 SNH5300R46U12.1W2 SNH5300R46UHJ92NW2 SNH5300R46UM3NW2 SNH5300R46K2W2
出售螺桿泵泵頭,滑油泵型號(hào)SNH940R50E6.7W21
