... Valve Handle, Valve Hndle2. We cast the parts by Sand Casting. The materials include Grey Iron, Ductile Iron ... NC Machine and Drilling Machine or CNC4. All the products are made according to ISO9001:2000.5 ... drawings.Check by Go & no go gageDrilling the hole Other Gate Valve Parts we make: Gate Gate Valve ... , ANSI, ISO etc.We are able to supply the products as follows:1) Materials include: Stainless Steel, ...