... as your ideal alternative. Shaffer ,Cameron API Spec H2S Hydraulic Single Ram BOPBOP Model:FZ35-70Main technical parameters:Bore:13 5/8 ... " (Φ346mm)Range of ram size:2 7/8", 3 1/2", 5", 5 ... control equipment as your ideal alternative.The shape of ram is planar square, and the housing body is cast ... , built-in oil circuit, safe and reliable seal. Hydraulic Single ram BOP