... , Surface treatment: Hot-dip galvanized, Electroplate galvanized h frame scaffolding Products Nameh frame scaffoldingMaterialQ235, Q345Surface treatmentHot-dip galvanized, Electroplate galvanized, painting.Place ... 6.40kg pictures We could supply: 1, Forged swivel coupler2, Double coupler3, Butterfly coupler(Hill- type coupler)4, Sleeve coupler5, Ring ...