Type of steel pipe and steel structure z-shaped by the company has been supplying products for steel structure by hiring contractors and factory production with orders from the manufacturer or distributor (see the details in the topic. The steel pipe products) by the company to supply the production employed, there were 3 black steel tubes are cylindrical (Square Tube) steel tubing, black sphere (Black Steel Pipe), and black iron pipe, flat shape (Rectangular Tube) size standard length 6 m. ½ "– 8" and has a thickness ranging from 1.0-4.50 mm. Additionally, the company will also supply the product to be sold to customers in order to cover the needs in the market for both general construction and construction of pipelines.
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