Min. Order Reference FOB Price
5000 Pieces US$0.20-0.35 / Piece
Product Description
Railway Fastener Rail Insulator Plastic Sleeve Sdu 25 Plastic Dowel Product Description Rail screw dowel,also known as rail plastic sleeve, concrete sleeper insert, is a counter-party fastener for a sleeper screw or anchor bolt. It is pre-imbedded into the concrete or wooden sleeper tie. Jointed ...