Instrument manufacturer / supplier in China, offering DH-LT-01 Vacuum Sealing Performance Tester, Packing Bag Sealing tester, Food Leak Detector, DH-300K DahoMeter 2 Years Warranty Digital Electronic Precious Metal Purity Balance, Gold Measuring Machine High Quality, DH-1200K Digital Electronic Gold Carat Meter, Portable Gold Assaying Equipment, Gold Measuring Machine and so on.