氫化聚脲柔光
收縮率和瓷磚相匹配不開裂，解決美縫劑硬度低，凹陷收縮開裂問題，延長產(chǎn)品使用壽命。
The shrinkage rate and ceramic tile match without cracking, solve the problem of low hardness of the beauty seam agent, depression shrinkage and cracking, and prolong the service life of the product.
