... are a Chinese manufacturer of construction formwork accessories and building fastener such as form tie,plastic ... hex nut,flat tie ,wall tie,tie rod,wing nut,scaffold coupler,u-clip,hook,expansion anchor ... bolt,chain roller,implosion nut ,cutting wire and other non-standard fastener most of them are ... tie ,thread rod , tie rod , tie nut , wing nut and other construction formwork accessories wedge bolt