After the foundation pit is backfilled, the steel sheet pilesshall be removed for reuse. Before pulling out steel sheet piles, the sequence of pile-pulling methods, pile-pulling time, and soil hole treatment should be carefully studied. Otherwise, the ground subsidence and displacement will be
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ERW straight seam steel pipeis made by using the skin effect of high-frequency current to heat the edge of the formed pipe billet to the welding temperature quickly and then extrude and weld it. According to different feeding methods, ERW welded pipes can be divided into high-frequency contact
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Steel products are widely used and have various varieties. Different standards refer to different types of steel products. There are seven main categories:1. Classified by quality(1) Ordinary steel (P≤0.045%, S≤0.050%)(2) High-quality steel (both P and S≤0.035%)(3) High quality steel
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Galvanized steel pipescan be called galvanized pipes. The main differences between galvanized seamless steel pipes and galvanized steel pipes are:1. Different usesGalvanized seamless steel pipes are mainly used for general structures and mechanical structures. Ordinary galvanized steel pipes a
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TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD
