... Co., Ltd , a professional manufacturing factory of Scaffolding in China, We specialize in various scaffolding systems and accessories,,They are: 1) System ... clamps.3) Frame scaffolding: plattec, mansion, other frames.4) Scaffold tubes: galvanized, and black ones.5) Off-shore props, screw jack ... scaffold.9) Brazilian type couplers: fixed coupler and swivel couplerprops quality adjustable shoring props