... package and shipment,if we have any problem we can't meet customers'requirement,we must let customers know ... drilling machines, grinding machines, and CNC machine centers. We can manufacturevarious mechanical parts and mechanical products for customers.We offer ... or samples. Material: Copper,Brass,stainless steel 303,304, mild steel, alloy steel, tc.Tolerance size: can reach to +/-0.001mm,ISO9001 and ...