There must be some potassium mineral resources in China—An interview with Wang Lili, a member of the Chinese People's Political Consultative Conference and a member of the Chinese Academy of Geological Sciences

At the resident of the scientific and technological community of the Fourth Session of the Tenth National Committee of the CPPCC, the reporter saw members of the National Committee of the Chinese People's Political Consultative Conference, researchers of the Chinese Academy of Geological S

Laser cladding in exhaust valve applications

The effect of the change of the scanning speed on the quality of the cladding layer Scanning speed, the surface quality of the cladding layer is obvious, the surface condition of the pores is slightly improved than that of the cladding layer 3, and the flat, smooth, non-porous cladding