Qingdao Sailing Metal Products Co.,LTD. is committed to providing high level standards of metal parts, plastic parts, other products and OEM service. With joint cooperation and investment of production equipments for our factories, we have established complete & capable spare parts and components manufacturing capability. Professional Manufacturer Drilling rods ▏PDC drill bits ▏Cutting picks ▏Milling bits cutting tools ▏Rock drilling bits ▏Efficient combination drill bits Rigging ▏ Drilling and Mining Parts.