Radiation detector ,portal radiation monitor...
Radiation detector ,portal radiation monitor...
HARGRAND (Former: BAOQI) was specialized in producing drilling tools. It is located in Yanjiao National High-T........
HARGRAND (Former: BAOQI) was specialized in producing drilling tools. It is located in Yanjiao National High-T........
We are a leading manufacturer established in 1996 of API oli drill pipe, coalbed gas drill pipe, shale gas dri........
We are a leading manufacturer established in 1996 of API oli drill pipe, coalbed gas drill pipe, shale gas dri........
We are professional drill pipe factory with ISO, API, GOST ceritificate to produce API 5DP oil drill pipe, dri........
We are professional drill pipe factory with ISO, API, GOST ceritificate to produce API 5DP oil drill pipe, dri........
Manufacturer and Exporter of Tricone Bits, PDC Bits and other drilling tools...
Manufacturer and Exporter of Tricone Bits, PDC Bits and other drilling tools...
Changsha Chaojingang machinery manufacturing Co., Ltd is a modern high-tech enterprise, which is specialized i........
Changsha Chaojingang machinery manufacturing Co., Ltd is a modern high-tech enterprise, which is specialized i........