91黑料产区一区一区三区,亚洲色母乱久久噜噜噜免费观看,欧美伦妇大交高潮久久久,永久伊甸院3秒转入无跳转下载,忘忧草永久免费研究院狼区

Phenolic resin for coated sand

The coated sand produced by this type of resin has the characteristics of high melting point and fast crusting speed, and the manufactured sand core has excellent anti-hulling performance.

Previous : No more
Next: Dust-falling wetting phenolic resin
Contact Us
Contact: Mr.Li +86138-0533-7575
Contact: Mr.Sun +86135-6162-3306
Address: No.628, 6th Floor Tongqian Davis Business Center, Lutai Road, High-tech District, Zibo City, Shandong Province, China