Shanghai Karoth Import & Export Corp., Ltd., which integrated production, technology with international trade, affiliated are some professional production factories. Our main concentration is various kinds of testing equipments, such as kwh meter test bench, transformer test set, partial discharge test system, motor test equipments, gas meters, kwh meters, balances & scales, viscometers etc. With strong development ability, advanced technology, strict management, our products not only sell well in domestic market, but also sell far to Japan, Vietnam, Thailand, Indonesia, India, Turkey, Chile etc. and are highly valued by its reliability, sensibility, accuracy, low rate of malfunction as well as competitive price.