Detailed Product Description Rubber hose coupling super quality, competitive price!We are Beijing Proleader Co.,Ltd., ... ,such as Rubber waterstop, Hydraulic Hose (SAE, DIN), Rubber hose coupling, Air hose, Water hose, Fire-resistant hose, Hose clip cloth ... bridges, tunnels, subways, construction and other projects. We have eight series and more than 1300 kinds of product specifications. Our products ...