The main use of plasticmaterial itself insulation, small density, no electromagnetic interference, corrosion resistance, waterproof performance, so as to realize its protective effects on screw.
主要利用塑料材料本身的绝缘、密度小、无电磁干扰、耐腐蚀、防水等性能，从而实现其对螺丝的保护作用。
2
Polyurethane Hard Foamed Plastic is an ideal kind of organic low temperature heat insulationmaterial.
聚氨酯硬泡是一种理想的有机质低温隔热材料。
3
The invention provides a plastic bubble film, belonging to a thermal insulation fireproof material for an agricultural greenhouse. The plastic bubble film comprises films, bubbles and water.