ShanDong XiangPeng Industry and Trade Co., Ltd.

20/08/2026

incorporées dans le couvercle et le cadre du tampon de regard respectivement par l'intermédiaire d'anneaux de connexion coulés

18/08/2026

Chaque élément standard du couvercle et du cadre du trou d'homme doit être équipé d'une chaîne en acier galvanisé à chaud d'une longueur de 1 mètre et d'un diamètre de 5 mm. Les deux extrémités de la chaîne doivent être

14/08/2026

aucun secoussement. Toutes les dimensions, poids et détails doivent être conformes aux spécifications spécifiées dans les dessins détaillés

13/08/2026

Les surfaces de support du couvercle et du cadre du trou d'homme doivent être usinées avec précision pour assurer un ajustement stable

12/08/2026

High theft resistance, high load capacity, long service life, corrosion resistance, insulation, environmental friendliness, anti-slip, and low noise

10/08/2026

Le couvercle et le cadre du trou d'homme doivent pouvoir résister aux charges de circulation classées conformément à la norme EN 124：

10/08/2026

The D400 manhole cover is made of ductile iron, which has significant advantages compared to ordinary gray cast iron:
Tensile strength ≥ 420MPa, yield strength ≥ 300MPa
Elongation rate ≥ 7%, toughness close to medium carbon steel, not easily brittle
Corrosion resistance is 5 times that of ordinary steel pipes
Graphite is distributed in a spherical shape, with high strength and wear resistance

09/08/2026

D400=heavy-duty grade+400kN test load (approximately 40 tons)+ductile iron material, is a standard configuration for heavy-duty areas such as urban main roads and highways, ensuring road safety and durability

08/08/2026

Resin composite manhole covers have high strength, excellent toughness, compressive and impact resistance, are not easily broken, and their load-bearing performance can meet the needs of road traffic. Lightweight, easy to transport and install, saving construction manpower. There is no inherent value in recycling, and the problem of theft can be eliminated from the root. It is resistant to acid and alkali corrosion, aging, corrosion and damage in rain, snow and humid environment, and has a long service life. There is no abnormal noise when the vehicle passes over, the sealing effect is good, and it is not easy to jump over. Excellent insulation performance, safe and reliable, and not prone to generating electrical sparks. Rich variety of colors and styles, customizable color patterns, neat appearance. Compared to traditional cast iron manhole covers, it has a lower overall cost and requires less maintenance. It is widely used in municipal roads, residential areas, factory areas, and other scenarios.

22/06/2026