gi pipe with factory price in China Dongpengboda

product range:16mm-325mm,WT:0.6mm-3.0mm product range: 12.7*12.7-400*600,WT:0.5mm-16mm Payment:T/T L/C Description: 1.Our pipes undergo a Chromic Acid passivation treatment for the surface of galvanized steel pipe. As a rule, hydrogen treatment and passivation treatment are the two major methods for the final effective painting treatment of galvanized pipe, in order to further improve the corrosion resistance of the zinc layer or maintain the original property of the coating. Furthermore, it also helps to prolong the durable years of the pipes. Generally speaking, our pipes can be used for at least 3 ~ 5 years, sometimes even up to 20 years. In that regard, there alsohas much to do with the specific environment in the actual applications. 2.Our factory is equipped with the tool of diamond roller for galvanized steel pipe. Diamond roller can control the shape of galvanized steel pipe in the process of production to make well-formed products used in construction industry. Customers who are very particular about product details such as the shape can have faith in our professional team and we will live up to your high standard. For large square steel pipes, we have combination roller equipment for manufacturing. Steel pipes can form square shape directly without other intricate steps and the shape is also very well because of our precise rollers and dedication attitude.

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