... Pipe coupling,pipe clamp fittings,flexible coupling 1:we can supply: NameCoupling, elbow, tee, cross, reducer, cap, mechanical tee, ... Industrial pipeline system on shipping, mine, oil field, textile, powder plant, etc.3) Pipeline system on subway station, railway station ... fire protection,mines,power,chemical industry and urban water supply and discharge.When it is connected with pumps,valves ...