Surface treatment :Black painting,varnish coating,PE,2PE,3PE,black oil coating,rust-proof painting ,galvanized or as customer's request.   

End finished:Beveled,square cut,threaded&coupled.

Seamless steel pipe is a hollow section, no seams around the circle, square, rectangular steel. Seamless steel tube is made from ingot or solid billet after perforation capillary, then through hot rolling and cold rolling or cold dial.
Seamless steel pipe is hollow section, a large number of used for conveying fluid pipe, steel pipe and round steel compared with the solid steel, the bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel.
Widely used in the manufacture of structural and mechanical parts, such as petroleum drill pipe, auto transmission shaft, bicycle frame and construction of steel scaffolding is used.