Hollow and self-Drilling Anchor system

Chrome plated OD tube |Chrome plated hollow bar used for hydraulic piston rods

US $3 / kg

Min. Order: 50 kg

Expanding-Shell Anchor Rod on Hollow Grouting Bolt Tunnel Mining Road

Artificial Lift API Spec 11b Oilfield Polish Upset Hollow Sucker Rods

US $50 / Joint

Min. Order: 50 Joint

shoulder drive drilling H-thread rod

US $5.3 / pc

Min. Order: 10 pc