Chinese Handling Tool API 7K Type 27-HDP Roller Kelly Bushing
Yantai Sunrise Machinery Co., LtdDurable Roller Kelly Bushing with API Spec 7K Certification for Drilling
Sinotai Petroleum Equipment Co., LtdPremium Quality API Spec 7K Roller Kelly Bushing for Rotary Drilling Rigs
Sinotai Petroleum Equipment Co., LtdAPI 7K Roller Kelly Bushing Used for 171/2" - 49 1/2" Rotary Table
Nantong Strong Petroleum Technology Co., Ltd.