... abundent experience in the manufacture of oil chemical industry forging• 3 workshops occupie20000 square meters, one is gear workshop, the second ... #,40#,45#,46#,etc.according to customers' different requirements.3,main material are 5CrMnMo,40Cr,42CrMo,20Cr2Ni4,5CrNiMo,15CrNiMo,20CrNiMo ... new AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); cylinder block forging