Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
Material selection steps for food packaging: 1. Observe the color. First of all, don’t buy food with blurry printing on the outer packaging; rub the packaging bag with clear printing by hand, and don’t buy it if you find that it is easy to decolorize,…
Identification method of plastic bags In the production of edible fungi, plastic bags are often used for clinker cultivation or production of cultivated seeds. The following is the basis for selecting plastic bags and the general method for identifying…
Classification of plastic bags Degradable and non-degradable. Both PE bags and nylon bags are plastic bags with different materials. PE bags are divided into high density and low density. High-density ones are tougher, have higher transparency, feel…
The advantages of plastic bags 1. Most plastics have strong corrosion resistance and do not react with acids and alkalis. 2. The plastic manufacturing cost is low. 3. Durable, waterproof and lightweight. 4. Easy to be molded into different shapes. 5.…
Composition of plastic bags Synthetic resin Synthetic resin is the main component of plastic, and its content in plastic is generally 40% to 100%. Due to the large content and the properties of resins that often determine the properties of plastics,…
