1.Q235Q255345 2.Galvanized,HDG, Drop Forged 3.ISO9001:2008, EN74, BS1139, AS1576 4. ... , Cuplock, Ringlock, Haki); Scaffold Coupler( British Type, American Type, German Type, Italian Type, Australian Type, Mideast Type, Korean Type, Janpanese Type, Indian Type etc.); Shoring Props,Formworks, Frame System ... 6.Provide good service for everyone.Images Drop Forged Double Coupler galvanized for Scaffolding