ISO Certification Custom Aluminum Casting Parts GM Die Casting and Hardware Co., Ltd. Base Info Model NO.:GM-1054Standard:DIN, ANSI, GB, JIS, BSWMaterial:AluminiumConnection:MaleSurface Treatment:PhosphideHead Type:RoundTrademark:GMSpecification:20*20*20Origin:Ningbo, ChinaHS Code:761090 Description Pre:DIN557 Stainless Steel 304 M16 Square Nuts Next:M8 Stainless Steel 304 Plain A2 DIN603 Carriage Bolts