... SUS304 heat treatment regime: Melting 1010~1150°C quick freezing.Stainless Steel Industrial Hinge SNJ-103, Door Hinge,invisible hinge, ... Size:50*60*2mm,customized3. Durable,exquisite craft 4. Material: Stainless Steel, optional 304,316 5. Surface treatment: Polishing, Drawbench ... 6. Opening angle: Above 180 degrees 7. Accessories: Stainless steel screws 8. Life: over 5 years to 10 years It is ...