... EN74 :Type: Pressed scaffolding sleeve coupler scaffolding sleeve coupler Scaffolding coupler Steel scaffolding sleeve couplerSize: scaffolding sleeve coupler scaffolding sleeve coupler Specification: MaterialQ235StandardsBS1139, EN74 ... 19mm, 21mm, 22mm, 23mmCertificationISO9001:2000, CE, SGSBritish Type Pressed Scaffolding Sleeve Coupler with EN74 :1) Material: Q235,2) Processing method: pressed3 ...