... 2.OEM manufacturer 3.+/-0.01mm 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 ... . Description High-quality, well-fame credit ,and good materials torsion spring clip