◆ RAM BOP
　　■ I have produced the blowout preventer drilling BOP and operation BOP two categories.
　　■ BOP types: conventional type ram BOP, manual single-ram cable BOP, manual with full closure Single Ram BOP, manual multi-function single-ram BOP (with full closed, half-closed, self-styled head), etc.;
　　■ Drive mode: manual, hydraulic;
　　■ End Connections: Flange, planted silk;
　　■ Working pressure: 2000PSI, 3000PSI, 5000PSI
　　■ Nominal diameter: 90mm, 120mm, 179mm;
　　■ production basis: API 16A and related specifications.

◆ ANNULAR BOP
　　Supporting the use of the hydraulic control system, when a drill hole, they can close the annular space of different sizes; when no drilling wells, the wellhead can be closed. During coring, logging operations a blowout, can be closed Kelly, coring tools, cables, wire rope, etc. and the formation of the wellbore annulus. In the decompression valve and buffer storage device with the next, through 18 degrees without fine buckle welded drill pipe, the force from the drilling operations.