Wuxi Xichen Metal Materials Co., Ltd.
WhatsApp：8618601560189 Е-mail: dingwei@xichenmetal.com
The hollow drill grout anchor rod adopts the empty structure, and the hole in the rod body is used as the high-pressure air water channel and grout channel. Compared with the solid rod, the hollow rod body structure can get better rigidity and shear strength. The outer surface of the bolt has a standard thread made of a large bump. The...