... a professonal manufacturer of scaffolding,scaffolding couplers,frames and related products. 1.Material: Q235Q255Q3452.Standard: EN74, BS1139, AS1576, ISO9001:20083. ... Europe, North America, Australia, New Zealand, Middle East etc.Main products: Scaffolding System( Kwikstage, Ringlock, Cuplock, Haki), Couplers ( British Type, ... three airports in north and south. Work Flow scaffolding Adjustable jack