翔丙基甲基纤维素厂家供应
在加拿大 we specialize in manfacture hydroxypropyl methylcellulose (HPMC) for many years , our company covers an area of 120 acres, now has 280 employees, including 28 senior technicians. Now the company has a non-ionic hpmc cellulose ether productio...华人论坛