Jiangsu Xinghua Plastic Corrugated Pipes National Lowest Price Quality Assurance 15933187015

内径：

50mm

The appearance of the plastic corrugated pipe should be smooth and uniform in color. The inner and outer walls are not allowed to have broken partitions, bubbles, cracks, hard lumps, or scratches that would affect use. The stiffness of the plastic bellows ring shall not be less than/when the plastic bellows is subjected to a transverse local load, the surface of the pipe shall not be cracked and the residual deformation of the pipe after unloading shall not exceed the outer diameter of the pipe. After the plastic corrugated pipe is repeatedly bent five times according to the prescribed bending method, and the special plug gauge can pass through the plastic corrugated pipe smoothly, the flexibility of the plastic corrugated pipe is qualified. The maximum allowable value of vacuum impact rate for the low-temperature drop weight impact test of plastic corrugated pipes is.