On June 21, 2010, strategic planning was announced at the Weichai 100billion-level green power R&D and manufacturing base and the 1.5 million high-power diesel engine strategic planning conference. Sun Chengping, general manager of Weichai Holding Group, made a technical reform investment planning report. The following is a wonderful video.
Drill Rod is used for rock drilling, blasting holes and other drilling works connected with various drilling bits in the quarries, coal mines, traffic and other constructions. The normal size of each rod consist of Hex22*108mm shank+ effective rod length+ taper rod end(7°,11°,12°), and the total length from 600mm to 9000mm. The connected body of tapered drill rod with drill bits (mainly button bits) is ideal drilling tool for drilling needs by granite & marble quarries, underground mining, for small blasting hole.
Jack Hammer Parts (drill Rod )
Drill Rod,Drill Pipe,Jach Hammer Parts
Quzhou Zhongdu Machinery Technology Co., Ltd. , http://www.moderatemachine.com