Since the galvanized square tube is galvanized on the square tube, the application range of the galvanized square tube has been greatly expanded compared with the square tube. Mainly used in curtain wall, construction, machinery manufacturing, steel structure engineering, ship power generation support, steel structure engineering, electric power engineering, power plant, agricultural chemical machinery, glass curtain wall, automobile chassis, airport, etc.
1. Galvanized square steel pipes and rectangular steel pipes are divided into the following grades
Q195-B grade, SS330, SPC, S185Q215-C grade, CS B type, SS330, SPHC, Q235-D grade, SS400, S235JR, S235JO, S235J2, Q345-SS500, ST52, S355JR
2. The galvanized layer can be customized, up to 280 grams.
3. The purity of zinc wire is 99.99%, and the zinc content is high, so that the weld seam of the pipe does not rust.
4. The diameter of zinc wire is 1.5mm, which has a good protective effect on welding.
5. No corrosion in the salt spray test for at least 8 hours.
6
. In the passivation process, we have our own invention patent - automatic spraying system of galvanized pipe passivation solution, which ensures uniform adhesion, high passivation efficiency and beautiful appearance.
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