Specifications 1.Integral Drill Rod Manufacturer
2.15 years of production experience
3.diameter:20-48mm
4.length:04m-10m
Integral Drill Rod: 1)Raw materil: 55SiMnMo, 95CrMo. 2)shank size: H22Χ108mm (7/8"Χ4¼"). 3)Length under collar:600mm,800mm,1200mm,1800mm,2400mm,2800mm,3500mm. 4)Diameter:29mm.30mm.31mm.32mm.33mm.34mm.35mm.36mm.39mm.40mm. The products are widely used in coaling,construction,stoning and etc. Website address: http://www.qianju.cn