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SICHUAN NEW TIANYUAN TECHNOLOGIES CO., LTD.
Wenzhou Bluesky Energy Technology Co., Ltd.
Hangzhou ChengYingYi Energy Technology Co., Ltd.
Shenyang Aerospace Xinyang Mechanical and Electrical Co., Ltd.
Senpai Machinery Co., Ltd.
CLW Heavy Industry Co., Ltd.
Sichuan Mayflower Precision Machinery Co., Ltd.
Beijing Sanki Petroleum Technology Co., Ltd.
Yongjia Aocheng Hardware Co., Ltd.
Zhejiang Shengxing Petroleum Equipment Co., Ltd.