hot finished seamless tube

1541G105 S135の糸は連結のドリル鋼管DZ60 DZ50をタイプする

DZ60 DZ50 1541G105 S135 Thread Types Coupling Drill pipe Torich is a manufacturer of Thread Types Coupling Manufacturers Range 3 Length HQ NQ BQ API Steel Grade G105 S135 Water Well Drill Steel Pipe for over 20 years. Specifications: Drill Pipes for Oil and Mineral Mining Applications: For Geological Drill underground for Oil and Mineral, for Mining Exploration Straightness, Concentricity, Mechanical Properties can meet the requirement of DCDMA (USA), BS4019 (UK), METRIC