jingzuan

1,best quality 2,low price 3,wide size code range 4,delivery on time 5,certified by ISO9001&API Pdc bit oil production processing, composite pieces drills.SizeCutter SizeNozzle Qty/TypeGauge LengthConnection Type6"Φ13mm4NZ1.5"-2.5"3 1/2" API Reg8 1/2"Φ19mm Φ13mm3NZ+2P2"-3"4 1/2" API Reg8 3/8"Φ19mm Φ13mm3NZ+2P2"-3"4 1/2" API Reg9 1/2"Φ19mm Φ13mm5NZ+1P2"-3"6 5/8" API Reg9 7/8"Φ19mm Φ13mm6NZ+1P2.5"- ...