High-performance Marine seismic line, inside there are different aperture of high-pressure air hole, 3000 psi pressure rating, 2000 psi, and smaller, and 44 ~ 122 core twisted or four ground wires, to control the opening and closing of the air gun, two layers of steel wire armoured bearing, can bear the breaking force of up to 60 tons, the outermost layer of PUR outer sheath layer, a waterproof and protection.