A new type sound absorbing foamed composites mainly made from inorganic fiber and polymer has been produced by the thermal decomposition of chemicalblowing agents.
以聚合物和无机纤维为主要原料，用化学发泡方法制成了一种新型泡沫吸声材料。
2
This equipment is designed for making plastic bottles, named injection-stretch-blowing molding machine. It is widely used to make bottle for packing of medicine, food, cosmetics and chemical products.
该机为注拉吹中空成型制瓶设备，广泛用于制造医药、食品、化妆品及化工行业的高档包装用品瓶。
3
The paper briefed the operation situation and existing problems of primary blowing cooler system in Ma an shan Coking and Chemical Work.