China AISI 4145H Square Kelly Manufacturer Landee offers AISI 4145H Square Kelly, API SPEC 5DP, SPEC 7-1, 6-5/8REG-LH-NC50, 25.4mm, 133.4 * 16.46mm.
China AISI 4145H Hexagonal Kelly Manufacturer Landee offers AISI 4145H Hexagonal Kelly, API SPEC 5DP, SPEC 7-1,133.4*16.46, 6-5/8REG-LH-NC50, 31mm.
China AISI 4145H Drill Collar Manufacturer Landee offers AISI 4145H Drill Collar, API SPEC 5DP, API SPEC 7-1, 158.8*9.15mm, NC46 Thread, 43.7mm W.T.
China AISI 4145H Drill Collar Manufacturer Landee offers AISI 4145H Drill Collar 2, API SPEC 5DP, API SPEC 7-1, 165.1*9.15mm, NC50 Thread, 46.85mm.
China AISI 4145H Heavy Weight Drill Pipe Manufacturer Landee offers AISI 4145H Heavy Weight Drill Pipe, 127 * 9.3mm, NC50 Thread, 25.4mm Wall Thickness.
China AISI 4145H Heavy Weight Drill Pipe Manufacturer Landee offers AISI 4145H Heavy Weight Drill Pipe, 114.3 * 9.3mm, NC46 Thread, 21.45mm W.T.