• hard alloy product for mining tools and oil field drill bit--for chopping bit and abrasion drill bit drilling into rock stratum(

hard alloy product for mining tools and oil field drill bit--for chopping bit and abrasion drill bit drilling into rock stratum(

USD $1 - $2 / Piece
100 Pieces(Min.Order)
  • 10000 Piece / Pieces per Month
  • Shanghai
  • T/T