... .2*2.7mm 3.Stainles steel 304 material 4.Self-color finish 5.Spring design Stainless steel door hinge Name of productspring ... hinge,hingeWebsitewww.wj23.cn or www.wj23.comMaterial Stainless steel or as ... in world market,we promise.4. Using different raw material: stainless steel 201, 430, 304, 316, brass, aluminum, SECC, Q235, ...