Plastic products

Plastic machinests

Macromolecular steel-plastic series

PProduct Introduction   Performance Index   Comparing Table of Like Products   Installation Instruction

Comparing Table of Like Products Cement Well Lid Series Waste Iron-saltpetre Well Lid Series Nodular Cast Iron Well Lid Series High-molecular Engineering Plastic-Steel Series Ⅰ Appearance and Weight The surface is unsmooth and has not tinting strength, and it is bulky. Being easy to rust and corrode, appearance visual effect is bad, and it is bulky. Being easy to rust and corrode, appearance visual effect is bad, and it is bulky. The surface is glabrous, elegant and fadeless, it can be tinted with color according to consumers’ demands, its weight is less than two-thirds of that of cast iron well lid. Ⅱ Bearing Capacity It doesn’t achieve the industrial standards of CJ/3012-93 and CJ/121-2000 issued by Ministry of Construction It doesn’t achieve the “Cast Iron Well Lid” industrial standard of CJ/3012-93 issued by Ministry of Construction It accords with the “Cast Iron Well Lid” industrial standard of CJ/3012-93 issued by Ministry of Construction It accords with the “Composite Material Inspection Well Lid of Regenerated Resin” industrial standard of CJ/121-2000. Ⅲ Tough Degree It is fragile, bad in toughness and easy to break into pitfall. It is fragile, bad in toughness, low in strength and easy to break into pitfall. It is fragile, bad in toughness and easy to break. It is very good in toughness, high in strength and uneasy to break. Ⅳ Condition of Vehicle Running Owing to the combination between well lid clipping and well base is not level, there is lifting when vehicle running on it and when causes damages, so it can not bear the weight of heavy vehicles. Owing to the combination between well lid and well base is not level, there are bounces and noises when vehicle running on it, so it can not bear the weight of heavy vehicles. Owing to the combination between well lid and well base is not level, there are bounces and noises when vehicle running on it. Owing to the combination between well lid and well base is close and level, it is uneasy to be damaged and there are not bounces or noises, so its bearing capacity is large. Ⅴ Maintenance Bulkiness and softening in edges increase the working difficulty and labor intensity of maintenance. Bulkiness, corrosion, rusting and other conditions increase the working difficulty and labor intensity of maintenance. Bulkiness, corrosion, rusting and other conditions increase the working difficulty and labor intensity of maintenance. Advantages of corrosion resistance, tinting, light weight and high precision, etc decide it is easy to be opened and maintained, and thus greatly lighten maintainers’ labor intensity. Ⅵ Service Life Three years About three years Ten years More than ten years Ⅶ Economic and Social Benefits Though the materials used is low in price, it is easy to be damaged and thus waste resources. For reducing cost, waste iron-saltpetre is used to make die casting, so it is easy to be stolen and inferior in quality, taking substandard products as fine products brings huge harms to state and people’s life and wealth. It is expensive and easy to be stolen. Price is moderate, it has not returned value, thus it only reduces construction cost, but also solves social problems of stealing and others.