DeRun Energy Co Ltd Drilling Motor Optional: 1-Straight Drilling Motor&Adjustable Drilling Motor 2-FBHï¼fixed bend housingï¼ABHï¼adjustable bend housingï¼0-3° 3-WBM&OBM drilling environment 4-120â regular temperature and 150â high temperature drilling motor 5-Even Wall Thickness Mud Motor 6-NBR rubber&NBR-HR Stator Rubber Technology 7-bypass valve&top sub connection 8-different stator/rotor lobes:5:6 7:8 9:10 9-Chroming and tungsten carbide rotor coating 10-Ball Type Universal Shaft and Petal Type and Titanium Shaft