单词	metal sealing ring
释义	metal sealing ring 金属硬密封圈
随便看	trade of industry products Trade of Intermediate Products trade of land and building trade of legal service Trade of Processed Products trade of processing with customer's materials trade of products Trade of real estate trade of resources trade of service trade of services trade of shrimp products trade of the agriculture products trade of vegetable oil trade publishing trade punch trade quantity trade quota agreement trade of water right trade on Trade on agricultural products Trade on any liquid instrument trade on cash system trade on commission trade on equity