Square cast iron manhole cover

The square Ductile Manhole Cover is made of ductile cast iron,high quality raw materials and effectively improve the pressure resistance  plasticity tenacity  .Adopted by our factory precision machining  Bottom reinforced structure and  uniform stress.  Various models and support customization.The factory Manhole Cover workmanship precision material is sufficient,  Insulation without noise  meet environmental requirements.   This product is suitable for urban roads, residential areas, scenic areas, factories, etc.  Word optional rain pollution power and LOGO

Different grades and different models can be used in different places  .We cast our products with care ,Strength factory quantity customization  and  We pay attention to the details of each produc .  Welcome