CNC Process Precise Hydraulic Cylinder Parts 1)ISO9001:2008 certificated 2)material:copper,aluminum,stainless ... are a factory,specialized in hydraulic,valve and automobile parts.The parts we manufacturing and processing belong to nonstandard ones.We ... MachinesCNC Machine CentresIf you want to customize some parts,especially valve parts,hydraulic parts,automobile parts,etc,welcome to Bowei.