Supply of B22 drill rod, taper drill rod connections, threaded connections Rod, Rod manufacturers 
 Rod 
 R32 thread series: 0.9 15 1.2 1.8 2.4 3.0 3.7 m 
 T38 thread series: 1.2 1.8 3.0 3.7 m 
 R38 thread series: 1.5 1.8 3.0 3.7 4.3 6.1 m 
 T45 thread series: 1.2 1.5 1.8 3.0 3.7 4.3 6.1 m 
 T51 thread series: 1.0 1.2 1.5 3.7 4.3 6.1 m 
 Quick-change drill rod 
 R32 thread series: 0.9 1.0 1.2 1.5 1.8 3.0 3.7 4.3 m 
 T38 thread series: 1.2 1.5 1.8 3.0 3.7 4.3 m 
 T45 thread series: 1.2 1.5 1.8 3.0 3.7 4.3 6.1 m 
 T51 thread series: 1.0 1.2 1.5 1.8 3.0 3.7 4.3 6.1 m 
 ST58 thread series: 3.7 4.3 6.1 m 
 Can follow the customer's samples or drawings for production and manufacturing