[1000-Tianjin Pipe - Welded Pipe introduction] Classification: roller tube: a welded steel conveyor idlers, usually with Q215, Q235A, B 20 steel and hot dip galvanized steel pipe diameter 457, diameter 63.5 -219.0mm. Tube bending, end to be perpendicular to the centerline, there are certain requirements ovality galvanized pipe diameter of 305, ordinary pressure and flattening test. Transformers tube: used in the manufacture of transformer heat exchanger tubes and other hot galvanized pipe diameter 355, using ordinary carbon steel, require flattening, flaring, bending, hydraulic test. Pipe to length or double length delivery on the pipe bending there are certain requirements. [1000-Tianjin Pipe - Welded Pipe introduction] classification, "according to a cross-sectional shape classification (1) simple section steel - round pipe, square pipe, oval pipe, steel triangular, hexagonal steel, diamond steel, steel octagonal , semi-circular steel, other (2) complex section steel - equilateral hexagonal steel pipe, five plum-shaped pipe, steel double convex, double concave steel, oval-shaped steel conical pipe, corrugated steel pipe , steel case, other galvanized pipe diameter 254 |. German standard pipe (certified) | galvanized pipe provided by the Tianjin Steel Pipe Co., Ltd. Tianjin thousand thousand Rong Rong Steel Pipe Co., Ltd. (www.tjqrgg.com). Tianjin, Tianjin, steel leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the 1000-pipe leading the staff warmly welcome all inquiries negotiations to create 1000-pipe a better future.