Boyuan Labor Insurance Hardware (Dongying Hardware and Building Materials Petroleum Machinery Accessories Market West Area Branch)

Dongying LESSO Pipeline General Agent (Changyun Mansion Branch)

Takley Hardware Tool (Shanghe Road Shop)

1st Line Tube Industry (Shanghe Road Shop)

Dongxin Valve Pipe Fittings

Shuntong Tube Industry (Dongying Hardware and Building Materials Petroleum Machinery Accessories Market West Area Branch)