Api5d Oil Water Well Drill Pipe Thread Protector - China

drill pipe thread types 6-5/8" low price casing pipe for not steady soil texture drill pipe 1.Product Name:drill pipe thread types 6-5/8" low used drill pipe price casing pipe for not steady soil texture drill pipe 2.Standard:API SPEC 5D 3.End protection:Plastic caps 4.Steel Grade:E--75, X--95, G--105, S--135 5.Common Tread Type:IF, FH, REG, NC, etc 6.Outside Coating:Black painting, anti-corrosion oil, galvanized or as per required by customers 7.Marking:Standard marking, or