Invalid Buy Request Report

Subject:

Drill Collar Is At The Bottom Of The Drill String And Is The Major Component Of The Bha. Drill Collar Is An Important Part Of Petroleum Drilling

Message:

Drill Collar Is At The Bottom Of The Drill String And Is The Major Component Of The Bha. Drill Collar Is An Important Part Of Petroleum Drilling,Cylinder Forging url:http://www.freeforgingchina.com

Reason: