Carbide drill bolt 
 Alloy anchor bolt drill bit diamond drill 
 Model ZTY27 / 2 ZTY28 / 2 ZTY30 / 2 ZTY32 / 2 
 Drilling diameter Φ27 Φ28 Φ30 Φ32 
 Connecting thread M14 × 1.5 M16 1/2-12 
 Routine use of screw thread M14 × 1.5 should be used when ordering other state 
 Shandong Jining coal mining company in the main branch supporting the following products: 
 ◆ mining drill categories: diamond drill bolt drill bolt drill bolt alloy drill PDC drill bit word cross wind drill drill drill column gear of coal drill-hole core drill drill drill oil drill geological geological drill drill drill without core drilling B19 B22 B25 drill rod drill pipe drill twist drill rod water geology exploration drill drill gas emissions 
 ◆ rock types: rock drill electric rock drill hand-held rock drill air leg rock drill internal combustion rock drill up rock drill YDT30 electric rock drill Y26 Hand-held rock drill YL18 hand-held rock drill Y19A hand-held rock drill YT24 rock drill YT27 rock drill YT28 rock drill 7655 Air-leg rock drill MZ7665 rock drill YN27 internal combustion rock drill YN27C internal combustion rock drill YN30A internal combustion rock drill YSP45 up FT110 air leg rock drill Air leg FT120 air leg 
 ◆ bolting categories: self-feeding type anchor bolt tray into the hollow grouting anchor bolt from the hollow grouting anchor bolts L-FRP rebar steel anchor bolt steel anchor tube D slotted mesh prestressed anchor bolts anchoring agent 
 Wang Zhang Wenfang 0537-2397118 15163721233 No. zhongmeigk06