Bock Type K Valve Plate: 1, Material: Steel 2, It is suit for FKX40-655K 3, High Quality and Best Price. BOCK Compressor Type K Valve Plate 1) It is suit for BOCK FKX40-655K2) It have the high quality, long durability, good flatness and planess.3) It include air-breathing valve leaf,exhaust valve leaf, shrapnels,screw, screw cap, and valve plate body.4) Strict inspection and production process.5) ...