... .Material: Copper ,brass,steel, stainless steel,AluminumThe machined parts can be use other material according to customers' ... works , turning ,finish machining3.Major product:precsion machined steel parts, investment castings,forged shafts,transmission components,gear & ... worms,screwed connectionhigh accuracy ss parts,sheet metal stamping parts,etc.4.Featureshigh precision ,quality,and ...