extrusion from low carbon alloy steel,after carbonitrided treatment on its surface.    Through extrusion from low carbon alloy steel,after carburized treatment on its surface ,it can improve the toughness of core and hardness of surface .With an...

high density, hardness, abrasion and corrosion, resistance at high temprature an excellent heat conductivity and anti-creep  While the crushing strength of valve  guide  is reached 500Mpa , the porosity >12%.we use vacuum oil-soaked,...

we have successfully developed a new steel valve seat on the basis of original foundry material QZ1-QZ6ZBJ93002-87.    Powder metallurgy valve seat made from variety of metal powder mixing, pressing, sintering, dont consider any castability...

support and match the GE 16V250 engine. 1. Not only has function of valve retainer, but in the course of valve opening and closing can forcibly make valve rotate around its axis, and make valve seat, valve guide grind each other and wear evenly to remove...

extrusion from low carbon alloy steel,after carbonitrided treatment on its surface.    Through extrusion from low carbon alloy steel,after carburized treatment on its surface ,it can improve the toughness of core and hardness of surface .With an...

Mainly support Wartsila 20 engines 4L20, 6L20,8L20, 9L20 OE quality 1. Not only has function of valve retainer, but in the course of valve opening and closing can forcibly make valve rotate around its axis, and make valve seat, valve guide grind each other...

products mainly support G.E.engine    We are manufacturer, and have stocks, the product match GE engine, it has inspecting&testing report, the production process is green.   advantages:1) For word wide market;2) Good...

Mainly support Daihatsu DL-26 diesel engine stocked for OEM and after-market OEM qualified parts   1. Not only has function of valve retainer, but in the course of valve opening and closing can forcibly make valve rotate around its axis, and make...

Mainly support SEMT Pielstick PC2-6B diesel engines Enough stocked for OEM and after-market Popular OE quality competitive pr   We are manufacturer, and have enough stocks for OEM and after market, , it has inspecting& testing report.  ...

Mainly support SEMT Pielstick PC2-6B diesel engines Enough stocked for OEM and after-market Popular OE quality competitive pr We are manufacturer, and have enough stocks for OEM and after market, , it has inspecting& testing...