Formwork, Scaffolding manufacturer / supplier in China, offering Trico Construction Concrete Form Tie System 50*100*2.5mm Flat Rib Washer for Formwork, Formwork Wall System Accessories 50*100mm Flat Rib Washer for Form Tie System, Hebei Trico Formwork Shoring Prop Adjustable Supports Steel Scaffolding Prop Sleeve with Handle Nut and so on.