Flanged wing nut, formwork parts, formwork nuts, ductile casting iron nuts, dywidag type We, hebei longquan industry co., ltd. (formworkparts), are the manufacturer of formwork parts and scaffolding accessories from china. We mainly supply wing nuts, tie rod, water stop, hex. Nuts, bar couplers, rapid clamps, frame formwork clamps, jack base, u head jack, prop nuts, prop sleeves, and other scaffolding fittings. In bags and pallets