... products as follows: 1) Materials include: Stainless Steel, Carbon Steel, Alloy Steel, Ductile Iron, Grey Iron, Copper, Aluminum Bronze, Malleable Iron ... Casting, Forging and Stamping etc. 3) Machining Types: Machined by Round Bar and steel plate, Drilling, Milling, Turning, Boring, Slating, Grinding,, ... available. 7) ISO9001:2000 8) Standard: ASTM, BF,BS, JIS, UNI, ANSI, ISO etc. casting wing nuts