论文部分内容阅读
密封材料是我国建筑防水材料三大系列产品之一,聚氯乙烯(PVC)油膏是密封接缝材料中的一个主要产品。太钢焦化振华化工厂和江苏省盐城市步风建材厂,在有关单位的协助
Sealing materials are one of the three major series of building waterproof materials in China. Polyvinyl chloride (PVC) ointment is a major product in sealed joints. Taizhou Jiaohua Zhenhua Chemical Plant and Yancheng Leifing Building Materials Factory in Jiangsu Province, assisted by related units