Covering food with nitrogen is a good method for preserving food, as it can double the shelf life of food.Consumers are clamoring for high-quality packaged food and fresh fruit products, but the dangers of chemical preservatives warn against this trend. In this era of increasing environmental awareness, everyone hopes to benefit from natural and chemically inert nitrogen gas.

High temperatures in summer accelerate rubber aging, tire wear, and can cause abnormal tire pressure, all of which can lead to tire bursts. Therefore, car owners should pay attention to daily tire maintenance and constantly monitor tire condition to prevent tire blowouts.

Metal heat treatment: bright quenching and annealing, carburizing, controlled atmosphere, powder metal sintering;Chemical industry: covering, inert gas protection, pressure transmission, painting, nitrogen and oxygen filling of coatings;