Grid tubes offer | Xiong Wang Thai (certified) | Taizhou grid tube provided by Xiong Wang Thai Plastic Products Factory. Xiong Wang Thai Plastic Products Factory (www.wangtai668.com) is specialized in the "plastic tube, MPP power tube, CPVC pipe electricity, irrigation pipes, HDPE pipes, p" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Fengjing Li. Structure size abalone effective aperture grille tube several sub-minimum hole size tolerances within the outer wall thickness of minimum wall thickness abalone abalone 28 ± 0.5 1.6 2.0 33 (32) ± 0.5 1.8 2.2 abalone abalone performance color grille grille tube performance color tube pipe should be uniform, usually white or gray, but also by the supply and demand sides agreed not allowed to have the appearance of exterior pipe deformation, distortion, the wall does not allow any air bubbles, cracks, discoloration decomposition line and clear impurities grid tube offer, both inside and outside the walls should be smooth. Pipe sections should be cut flat and perpendicular to the tube axis. Project Unit pipe bending pipe bending should not exceed 0.5% of the physical and mechanical properties of numbers requires a tensile yield strength Mpa ≥30 2 longitudinal retraction rate% ≤5.0 3 Vicat softening temperature ℃ ≥75 4 drop hammer impact test (0 ℃) a 9/10 external load resistance is not broken five performance KN / 200mm ≥9.5 6 static friction factor / ≤0.35 abalone abalone grill telecommunications infrastructure pipe square tube grille PVC-U pipes accordance with the following provisions: 1. In areas with better telecommunications grid soil pipe, after the ditch dug trenches should reinforce the square hole grid tube, 50mm backfill sand or fine soil. 2. In somewhat less soil areas should be done after the concrete foundation dug trenches, on the basis of the first 50mm sand or fine soil backfill. 3. In the soil is rocky areas grille tube, 200mm should backfill sand or fine soil dug trenches after. 4. In soil for backfill or soil unstable regions, should be done concrete foundation steel plate. 5. In poor soil, high water table, the flow of sand or silt areas dug trenches should be performed after the foundation reinforcement, concrete pipes and encapsulation. 6. When the pipe into the building or person (hand) hole near the building or person (hand) hole should be not less than 2m length of reinforced concrete foundation and encapsulation.