Steed Machinery Co., Ltd. - pressure switch, presostato, modular pressure switch, valve for surface grinder, surface grinder control valve, modular valve, sandwich, solenoid directional valve, solenoid flow control valve, mini-power pack, power unit, high pressure filter, medium pressure filter, heat exchanger, oil cooler, oil level, air breather, gauge damper, end cover, pressure indicator, coupling, cartridge relief valve, logic valve, needle valve, In-line check valve, proportional pilot relief valve, cetop valve