Why have talcum powder changed the heroes of the historical …

Talc powder, as the name suggests, is made from talc. The main component is magnesium silicate. China's application of talc has a history of more than 2,000 years. It was first recorded on Shennong's Materia Medica. The familiar version of this steel is also recorded. Li Shizhen said: talc ...read more...

How to clear the small advertisement on the security door An…

Newly purchased security doors are always affixed with various advertising stickers, affecting the appearance, and cleaning up is also a big problem. Many people try to wipe it repeatedly with a hot towel or wind oil. Although the effect is good, this method is more troublesome. How to clear the s ...read more...

Detailed introduction of cattle manure treatment methods in …

The cattle manure treatment method in the cattle farm details the pig manure defecation machine, cow dung squeezer, chicken manure press, piglet squeeze, pig manure dryer, defecation machine, Shandong, Fujian, Jiangsu, Zhejiang Wenzhou, Sichuan, Guangdong Guangzhou 156 9809 8065 Chongqing, Lianyun ...read more...

New progress in polycrystalline technology

Looking back on 2017, technologies such as Diamond Wire, Black Silicon, N-cells, and PERC are maturing, and it is the general trend for PV demand markets to turn to highly efficient, cost-effective products. The fierce market competition will force technologi ...read more...

Which pesticides can replace highly toxic pesticides

In 2005 and 2006, the Ministry of Agriculture conducted a large number of experimental demonstrations to screen out a number of varieties that replaced five highly toxic pesticides . Among them, the control of rice pests include: fipronil, triazophos, chlorpyrifos, avermectin, ...read more...