... of springs, including Compression spring, Extension spring, Torsion spring, Wire spring, Art and Craft spring, Battery spring etc. We offer competitive ... customer satisfaction4> specialized in producing precision small spring with Wire Diameter from 0.08mm-10. ... wire), bronze, copper, phosphorus copper, beryllium copper. Alloy steel contains 60Si2MNA, 60Si2CRVA, 55CrSi.Product performance1.service ...