It's a 'ring' where I glue waterproof polish paper P4000 on.
这是一个'环'我胶水防水波兰文件p 4000上。
2
The results of this paper have shown that it is successful for improvement on the waterproof and adhesive strength of PVF with TDI.
研究表明甲苯二异氰酸酯对聚乙烯醇缩醛胶粘剂耐水性改性是可行的并且能提高胶粘剂的粘接强度。
3
This paper introduces the structure, performance, characteristic, using scope of new type waterproof materials SDK and building technique and operating demands.