Xi'an Dongxu Meters Instruments Co., Ltd. is located in Xi'an, as one of Asia's largest cng auto parts manufacturer. We are a set design, production, sales of auto parts vendor. We specialize in a series of cng accessories, such as cng/lpg ecu kit, reducer, injector, emulator and cng pressure gauge and so on used in car conversion system and sf6 density monitor, various common pressure gauges with reasonable price and on-time delivery, mainly exported to Russia, India, North American, Middle East etc. OEM is supported. Hope to do business with you. My Skype/Whatsapp:+86-18991837319