... Negative Pressure -750mmHg Pressure Proof 1.5MPa TUBE Shanghai suke Mechatonic Science&technology Co., LTD, ... , plastic fittings, hydraulic connector, rotary joints and metal fittings, quick connectors, miniature connectors, throttle valve, tube and trachea ... plastic fittings, hydraulic connector, rotary joints and metal fittings, quick connectors, miniature connectors, throttle valve, tube and trachea ...