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Wenzhou Changlong Fuel Dispenser Manufacture Co., Ltd.
Wenzhou Bluesky Energy Technology Co., Ltd.
Senpai Machinery Co., Ltd.
Shenyang Aerospace Xinyang Mechanical and Electrical Co., Ltd.
Beijing Sanki Petroleum Technology Co., Ltd.
Hangzhou ChengYingYi Energy Technology Co., Ltd.
Hebei Lifu Pipeline Tech Co., Ltd.