Attn: Purchasing Manager Dear Sir, Re: Pneumatic Drill Pipe Slip We are a China based trading company specialized in export of Chinese made machineries and their accessories. So far , we have the following pneumatic drill pipe slip to supply at a very good price for drill pipe handling in oil well drilling. Unique Features and Applications 1. Easily operated, automatically air driven up and down; 2. Less labor force but high automatic control; 3. Strong drill pipe[...]