... tolerance 4.QC inspect after products finished 5.spring clip Product name Industrial canopy stainless steel door ... & horizontal CNC center, CNC lathe, CNC milling machine, WEDM-LS(4-axis), WEDM-HS, digital precision ... lathe and Milling machine, instrument lathes, boring machine, in / cylindrical grinding,WEDM-HS,EWMD- ... well-fame credit ,and good materials torsion spring clip