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7. After the anti-corrosion coating is completed, the polyethylene layer at the end of the pipe should be removed. The reserved length of the pipe end is 100mm to 150mm, and the end face of the polyethylene layer should form a chamfer of less than or equal to 30°. 4.8 After the pipe end is treated, according to the user's requirements, the surface of the bare steel pipe can be painted with anti-rust and weldable coating. Anti-rust weldable paint should be applied according to the product specification. The application of epoxy coal tar pitch anti-corrosion steel pipe is very extensive, and the performance after drying is also very good, but it is easy to deteriorate due to high temperature or humidity during storage and use. Therefore, it should be kept away from heat sources or open flames before it is dried and formed, and it should not be exposed in a humid environment. Its application in underground oil pipelines is very common. For example, epoxy coal tar pitch anti-corrosion steel pipe is a pipeline facility with steel pipe and epoxy coal tar pitch coating as the main structure. It is a relatively common underground oil pipeline.
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Our company is a manufacturer specializing in the research and development, production, sales and service of Seamless Steel Pipe, Welded Steel Pipe, Galvanized Steel Pipe, Steel Plate & Coil, Galvanized Steel Coil and Ppgi Coil. There is inventory support to meet the requirements of timely delivery.
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