Cuplock scaffolding system is mainly used in Middile East construction market,it has characteristic of low cost and easy assembling.The mainly parts are top cup,bottom cup and wedge.Cuplock scaffolding top cup has two type,one is made by nodular cast iron technology,and follow the sdandard of QT450-10.Another one is made by forging technology,use material #20-#30 steel.The bottom cup is made by pressing with material Q235,and wedge normally made by forging also.