Polysulfonamide (PSA), a kind of high temperature resistant synthetical fibers, it is explored by national researchers.

芳砜纶是我国自主开发的一种耐高温合成纤维。

youdao

Polysulfonamide (PSA), a kind of high temperature resistant synthetical fibers, it is explored by national researchers.

芳砜纶是我国自主开发的一种耐高温合成纤维。

youdao