Gas Valves 1.Material: Brass C3604 or Aluminum 6061 2.Short Delivery date, sample 3-7 days, mass production 10- ... all kinds of maching shafts for mechanical and electrical useage.2)Precision tolerance :+\-0.02mmOur feaures:1)Equipment:We own Auto ... machines,Milling machines,Second Processing machines,more than 400 total.2)Material:iron,carbon steel,stainless steel ,brass ,copper ,alloy steel ...