精益管是由优质钢管经过表面处理后，外表面采用热塑粘合特殊塑料层，内表面覆防腐层组合而成，组成产品后，具有外形美观，耐磨，色泽光亮，防锈无污染，不产尘等优点，可根据客户需要提供各种颜色。Bar pipe is made by high-quality steel pipe with surface treatment，the appearance surface is treated with special thermoplastic adhesive plastic layer，the inner surface is coated with anticorrosion layer，The product’s strong point is beautiful，wear-resisting，bright，rust-proof，non-polluting，and did not produce dust.we can make in various colors according to customers’ request.材料Materials钢管+塑胶树脂Steel pipe+plastic resin编号 NoH-4000重量 Weight750g/h外径 Outside diameterΦ28长度 Length4m颜色 Color乳白色、米黄色、黑色、绿色（可特殊定做）Milky white，beige，biack，green(special customized)类型 Type普通型/防静电型 Normal/Antistatic type钢管厚度The thickness of steel pipe0.8/1.0/1.2mm技术说明Φ28标准柔性管的强度表柔性管实验条件：1、外力集中于柔性管正中央；2、测试速度为50mm/min；3、柔性管在室温下自由静止在两个支撑点上；（注：室温20±5℃）Flexible bar technical noteThe strength table of standard flexible tubes ofΦ28Experiment condition of flexible tubes：1、External force integrated in the center of flexible tubes；2、Testing speed 50mm/min；3、The flexible tubes freely stationary at the two supporting point at interior temperature(notes：:interior temperature 20±5℃）