... , 3.Stainless Steel Handle,door handle,stainless steel square door handles 1.Material : Stainless steel 304, 3162. Surface: mirror polish, high polished3.Stainless Steel Handle,door handle,glass door handle,stainless steel square door ... tensile strength. ,yield stress ,notched bar impact tenacity, x-ray,metallograph.7. Quality control: According to ISO 9001 2001 Stainless Steel Handle,door handle