In the 1970s, the use of diamond binders and cubic boron nitride whetstones with metal binders was used to process hardened steel or cast iron, and the wear was only 1/150 to 1/250 of ordinary oilstone, and the pressure of the stone on the workpiece was also It can be incre…
Archives: 202001
Abstract On March 18th, Qi Junliang, executive director and party secretary of China Machinery Industry International Cooperation Co., Ltd. met with Wang Jianzhong, director of the State-owned Assets Supervision and Administration Co…
As an art, stone carving has developed very rapidly in today's culture after being baptized by history. However, China's stone carvings and Western stone carvings are vastly different. Because of …
ã€China Aluminum Industry Network】 1. Materials The main materials for aluminum doors and windows generally include three aspects: aluminum profiles, glass, and hardware. When the owners purchase products, they often pay more attention to the thickness of aluminum profiles and g…
On March 12th, the world's first full-section hard rock roadheader (TBM) operation line of Lijing Coal Mine achieved safe safety in the 1413A high-drainage roadway of Zhangji Mine of Huainan Mining Group, which marked the successful completion of the 52-day test. A…
Selection of motor protectors <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br&…
Lycoris radiata, a perennial herb. Spherical bulbs underground, outsourcing dark brown membranous scales. The ribbons are narrow and dark green in color. They were drawn from the base and came into late fall and fell into early summer. When the flowers are open, they cannot see the leaves.…
On February 12th, the inspection robot carried out daily inspections in the substation. It acts along the underground magnetic field lines as a travel route, and can automatically collect various operational data of the substation around the clock, and can also automaticall…