Witbreak DRA –21, Witbreak DRA-22, Witbreak DRB-11, Witbreak DRB-127, Witbreak DRB-401, Witbreak DRC –163, Witbreak DRC –164, Witbreak DRC-165, Witbreak DRC –168, Witbreak DRC-232
oxyalkylated phenolic resin 烷氧基化酚醛樹脂
Witbreak DRA –21, Witbreak DRA-22, Witbreak DRB-11, Witbreak DRB-127, Witbreak DRB-401, Witbreak DRC –163, Witbreak DRC –164, Witbreak DRC-165, Witbreak DRC –168, Witbreak DRC-232
oxyalkylated phenolic resin 烷氧基化酚醛樹脂
豫公網(wǎng)安備41010502006654號(hào)