high-frequency steel pipe

1.Our main production are hot-rolled steel pipe ,high-frequency straight welded steel pipe and hot-expanded steel pipe .hot-rolled steel pipe is divided into ordinary structure steel pipe and low-middle pressure transmission fluid steel pipe .Which is processed by the material of high-frequency steel pipe ,with the removing of inner burrs ,diameter shrinkage process ,as well as the high-temperature annealing ,the annealing temperature is up to 1000,eliminate the internal stress that produced in the process of the steel pipe ,so achieve consensus in  metallurgical structure and mechanical properties, then after 100% hydrostatic test pressure ,not less than 80 kilograms.
2.As our main products ,the general structure steel pipe and low-middle pressure transmission fluid steel pipe ,with high technical content, high added value, cost-effective and uniform wall thickness ,are widely used in gas pipeline, oil pipeline ,water pipe, sewage pipe, air-conditioning pipe fire pipeline construction, power line ,mining pipe and so on .

high-frequency steel pipe :

high-frequency steel pipe:with high quality ,competitive price and best service