we manufacture swivel,fixed double and single scaffold coupler with different angles to fitting scaffolding and pipe M48.6*48.6 M48.6*60.5 ,M48*60 and can supply it according to customer's request  .we also manufacture other construction formwork accessories such as pin,wedge ,wedge bolt ,wall tie,thread rod,B-form tie/bolt,B-nut,D-cone ,expansion anchor bolt ,implosion nut,wing nut,U-clip,hook,washer and other non-standard fastener most of them are used in building ,bridge,railway construction to fix formwork