We are Supplier of this product. Standard : A-A59326Production Method : Lost Wax Casting & Lathe MachiningSize : From 12, 34, 1, 1-14, 1-12, 2, 2-12, 3, 4, 5, 6Body Material : Stainless Steel 304 or 316Cam Arm Material : Stainless Steel 304 or 316Gaskets Material : NBR, EPDM, Viton, SiliconThread : NPT, BSP (Female BSPP & male BSPT)Certificate : ISO9001:2008, CE