... .Material StandardStainless steel, casting, copper, aluminum , brass, aluminum alloy, AlSi 12 etc6.Talerance ±0.005mm7.Precision machiningBoring machine, line ... on machining, assembly and providing high quality mechanical parts for our oversea customers. Now we hold 40% o the ... from the foundry, and in the meanwhile work together with many good foundries producing steel castings, stainless castings s, ...