... ISO9001:2000; ISO14001:2004 U Spring, Compression Spring, Torsion Spring, Extension Spring,Tension Spring1. Introduction of ONIC Factory Founded in1995 ... , CNC lathe parts, CNC centre parts, Lathe parts, CNC springs, Sheet metal parts, Bolts, ect. 2. Spring Workshop3. ... ,specification inspect report,surface treatment4.Photoes of Springs U spring, compression spring, torsion spring, extension spring