The chemical formula of 201 is 1Cr17Mn6Ni5, and the chemical formula of 304 is 06Cr19Ni10. The main difference between them is nickel and chromium, 304 is 19 chromium and 10 nickel, while 201 is 17 chromium and 5 nickel

Biodegradable plastics synthesized by microorganisms, referred to as biodegradable plastics, include biological polyester, biological cellulose, polysaccharides and polyamino acids, etc., which can be completely degraded by microorganisms in nature.

Christmas day on December 25 is the day to celebrate the birthday of Jesus Christ, the founder of the Christian religion.

The virtue of honey.

One's reading ability is very important. This is because:

Water bottle is the most common, but what kind of water glass drinking water is good for the body, this is a lot of people are concerned about the problem, here I will introduce to you.1.

Long-distance running is a popular sport nowadays. In addition to the preparation before long-distance running and various skills in long-distance running, the matters needing attention after long-distance running are also very important. So what should we pay attention to after a long run?1.

Stainless steel is better because of the amount of chromium, nickel

There is no shortage of interesting things in life. A few simple coasters can both protect and decorate the table. Non-slip cup mat, do not worry about not paying attention to the water sprinkling table, do a good job of documents wet, in the plain life of the warmth brought by the details.