出差上的少妇20p_深夜福利出处gif动态图900_电影欲奴_国产免费131美女视频

Welcome to the official website of Zhengzhou FangYuan Packaging Materials CO., LTD.

Zhengzhou FangYuan Packaging Materials CO., LTD

Enquiry hotline:

13503712272

Zhengzhou FangYuan Packaging Materials CO., LTD

Plastic woven bags have the importance of waterproof sealing

* 來源: * 作者: admin * 發(fā)表時間: 2022/08/30 15:05:00 * 瀏覽: 192
Due to the special requirements of chemical industry, cement, fertilizer, sugar and other industries on packaging, quite a few plastic woven bags need to have waterproof sealing function. At present, there are two types of waterproof sealed woven bags widely produced and applied in our country: one is the ordinary separated woven bag with outer woven bag and lining film bag, and the other is the multifilm woven bag coated with a layer of plastic film on plastic woven cloth.