... .+/-0.01mm tolerance 4.QC inspect after products finished 5.spring clip Product name Industrial canopy stainless steel door hingesControllable toleranceEquipped with ... /CAEMaterial Range:Metal: Stainless Steel, Brass, Aluminum, Steel, Carbon Steel.Plastic : PU, PVC, POM, PMMA, Nylon ,HDPE etc.QC (inspection everywhere ... Description High-quality, well-fame credit ,and good materials torsion spring clip