OPEC's proven oil reserves increase by 4% last year

According to a report by the US Bloomberg News Agency on July 6, the Organization of Petroleum Exporting Countries (OPEC) said today that OPEC’s proved oil reserves increased by 4% last year.

In its annual statistical communique published today, OPEC stated that the total crude

Slag pump sealing method

There are three types of sealing methods for slurry pumps, each of which is different. Here are three types of sealing methods.

Slurry pump is the most common kind of seal, which is the first type of seal. It is used to inject water into the shaft sea

E-commerce Xintiandi Powers Yuhuan Valve Transformation and Upgrade

On November 11, 2011, Yuhuan Manufacturing Industry E-commerce Forum was successfully held in Yuhuan Party School. Lu Jianxin, Secretary-General of China Electronic Commerce Association, Zhang Huixiang, Secretary General of Yuhuan Machine Tool Industry Associa

Grain dryer equipment development momentum good technical learning atmosphere

According to statistics, after harvesting, China’s grain harvested, germinated, and deteriorated during storage, transportation, processing, etc., due to wet climate, too late to dry, or failing to store moisture safely, and throwing losses in the drying process, can reach China’s