Electrical Steel Conduit, Gi Slotted Channel, Gi Trunking manufacturer / supplier in China, offering BS4568 90 Degree Solid Elbow Conduit Fittings HDG 25mm, BS4568/En61386 20mm 25mm 32mm Boxes Intersection Four Way Steel, BS4568/En61386 20mm 25mm 32mm Malleable Iron U Branch 2 Way Boxes HDG and so on.