... chain The chain can be iron, brass, S/S or plastic. Plastic Plumbing Bottle Trap for sink 1.the main body is PP2 ... of stainless steel .3.The chain can be iron, brass, S/S or plastic.4.the stopper is made of rubber.5 ... drainers,water tank fittings,WC connector , stamping parts,machining parts,and rubber&plastic parts. Plastic Plumbing Bottle Trap for sink Verified Information ...