Ningbo Chaoyang Household Gas Stoves Co., Ltd. Which is specialized in designing, manufacturing, marketing gas cocks, gas safety valves for various of gas fired appliances such as gas cooktop, gas grill and gas space heater since 1988. We have owned CE and CSA, AGAcertificates for our LAITE branded gas control valves, in EU and North America. Our ISO certified factory covers more than 15000 square meters with state of the art of machining equipments from Italy and Taiwan, Equiped with sophisticated testing machines imported from Japan, We always perform 100% on-line leak testing for all of our valves. Most of our experienced staff are well trained in this industry for years with know-how in designing and manufacturing a gas valve. All of aboves distinguish ourselves from many competitors. We are an export-oriented company above 50% valves are directly exported, specially for U. S. And Canada. For your convenience, please visit our web. w w w. valvenb. comIf you have any questiones or concerns pleas let me know