Metal OEM Parts, Aluminum Parts, CNC Machining Parts manufacturer / supplier in China, offering 201 Guard Hook Double-Layer Galvanized Malleable Cast Iron Key Clamp Pipe Fitting, 199 Single Side Fixing Bracket Safety Guardrails Galvanized Cast Iron Pipe Clamp Fittings, 198 Double Side Fixing Bracket Cast Iron Key Clamp Pipe Fittings for Stair Indoor and so on.