Steel Pipe hi economical steel product a ni a, grade hrang hrang, specification, leh performance mamawh hrang hrang a awm a ni. Steel pipe hmang hian tui leh powdered solids te phurh chhuah theih a ni a, lumna in thlak danglam thei a, mechanical part leh container te siam theih a ni bawk. Structural grids, support, leh mechanical support siamna atana steel pipe hman hian a rit a ti tlem thei a, metal 20-40% a humhim thei a, factory-a siam, mechanized construction a tichak thei bawk. Highway bridge sakna hmuna steel pipe hman hian steel a humhim bakah sakna a ti awlsam mai bakah, protective coatings-in a huam chin, investment leh maintenance cost a tihtlem phah hle bawk.