There are a lot of square tube manufacturers, although Wang Po sell melon, self-boasted, but flame Xin Sen domain still can not help but boast a boast of their own manufacturers of high-quality square tube, below please listen to xiaobian one by one!
(A)process classification
Which is divided into welded pipe：
(a)according to the process points-arc welding square tube, resistance welding square tube(high frequency, low frequency), gas welding square tube, furnace welding square tube
(b)according to the weld points-straight seam welded pipe, spiral welded pipe
2) material classification
Tianjin square tube according to the material points: carbon steel square tube, low alloy square tube.Carbon steel is divided into: Q195, Q215, Q235, SS400, 20 # steel, 45#steel; low alloy steel is divided into Q345, 16Mn, Q390, ST52-3 and so on.
(III)production standard classification
Square tube according to production standards: GB square tube, Japanese standard square tube, British Square tube, American standard square tube, European standard square tube, non-standard square tube.
As a professional Tianjin Fang tube manufacturer, flame Xin Sen domain Fang tube focus on FANG tube quality, Fang tube price, Enterprise Credit, to provide our customers with professional and convenient procurement services, allowing you to buy the most suitable, the most cost-effective Fang tube.
