黄色a级片网站,看看黄色一级片,欧美日韩黄色片,97不卡在线视频,九九在线视频,欧美精品一级,亚洲精品国产精品国产

QQ截圖20230522162520.png

Pearlescent pigments have good chemical stability, are non-toxic, odorless, high-temperature resistant, acid resistant, and alkali resistant, and are suitable for water and oil amphoteric systems. In the seed coating industry, direct contact with seeds is possible, with almost no impact on the germination rate of seeds; Strict control of heavy metals and microbial content can be applied to food packaging that comes into direct contact with food.

Copyright(C)2023,Hebei Oxen New Materials Co., Ltd. 冀ICP備05005536號(hào)
Address:No. 6, Baihe Road, economic and Technological Development Zone, Langfang, Hebei Powered by kbyun.cn