JOYO M&C is a high tech company focusing on R&D and manufacturing measurement and control instrument, equipments and system serving for petrochemical industry. Our featured products include SERVO TANK GAUGE for petrochemical, LPG/LNG, PIPE FLOW METER, DIGITAL CONTROL VAVLE, PIPE ONLINE DENSITOMETER, PORTABLE DENSITOMETER, and STATIC GROUNDING MONITORING DEVICE etc...