Min. Order Reference FOB Price
1 Set US$300.00-16,000.00 / Set
Product Description
API SPEC 7-1 Concave Bottom junk mill Shoe grinding is a kind of grinding well where abouts tools of things. Such as grinding bits, roller cones, diameter gauges, slips, flushing pipes, drilling tool joints, deep well pump accessories, and other falling objects. Flat and concave bottom grinding ...