high quality drill rod for tunnel
USD $1,500 - $2,000 /Ton
Min.Order:1 Ton
Sanhe Hargrand Drilling Tools Co., Ltd.
Specifications
drill rod for tunnel
DIA:AC BC NC HC PC
Length:1500mm
Material: 30CrMnSiA 45MnMoB 850XJY
packaging:as your requirements