Rifeng Pipe (Chuanghui Tube Industry)

Shan Dewujin Valve Fire Fighting Pipe Fittings

Water Heating Pipe Fittings Concourse (Northeast City Hardware 1 Unit Shop)

Dezhou Shengquan Valve Pipe Fittings

Junxing Tube Industry (Northeast City Hardware 1 Unit Shop)

Shandong Huiju Hardware Accessory Consumable (Jupian Yuncang)