frame scaffold 1.High grade carbon steel pipe Q235 or Q345,HDG for extended worklife. 2.Simple ... ,easy assembly. frame scaffold,mason frame1.Material:high grade carbon steel Q235,Q245,OD48.3mm*3mm or as required. 2.Simple ... ,top frames),cross braces(diagonal braces),couping pins(lock pins),steel planks(walk boards).4.Surface treatment:Hot dip galvanized or electro ...