Water transport

Mainly used to transport water, gas, air, oil and heating steam and other general lower pressure fluid

It can be divided into pipeline, engineering structure, thermal equipment, petrochemical industry, mechanical manufacturing, geological drilling, high-pressure equipment steel pipe, etc.  According to the production process is divided into seamless steel pipe and welded steel pipe, seamless steel pipe and hot-rolled and cold-rolled (drawn) two, welded steel pipe and divided into straight seam welded steel pipe and spiral seam welded steel pipe.