Stainless Steel Concealed Hinge SNJ-101 1. Hard,strong loading ability 2. Size: 51*80mm,customized ... 3. Durable,exquisite craft Stainless Steel Concealed Hinge SNJ-101, Door Hinge, Kitchen Hinge1. Material: Stainless Steel, optional 304 or ... , agricultural, ships part.SUS304 heat treatment regime: Melting 1010~1150°C quick freezing.