... Type Pressed Scaffolding Swivel Coupler :Type: Pressed Scaffolding Swivel Coupler Scaffolding Swivel coupler Scaffolding coupler Steel Scaffolding Swivel couplerSize: Scaffolding Swivel coupler Scaffolding Swivel coupler Specification ... , 19mm, 21mm, 22mm, 23mmCertificationISO9001:2000, CE, SGSBritish Type Pressed Scaffolding Swivel Coupler :1) Material: Q2352) Surface: Zinc Plating, or hot dip ...