... silicon sol precision casting 4.weight range:0.5kg-50kg pump partsMaterial: stainless steel(316,316L,CN7M,CD4), carbon steel ... BSTechnique:silicon sol precision castingWeight range:0.05kg-50kgSurface treatment: heat treatment, plating, polishing, machining, machining center.We can ... SCS13, SCS1, SCS2 BS-304C15,410C21,420C29 Silica sol process Water glass processCarbon steel ASTM A216-Cr, WCB, WCA, WCC ...