Noong Hunyo 22, 2019, pumunta si Wang Shu Qin, Chairman ng China Pen Association, Wu Shaoping, Vice Chairman, at Ren Xiuying, Secretary-General, at isang grupo ng apat na tao sa Wuxi Shengye Tebang New Material Technology Co., Ltd. upang magsagawa ng pananaliksik.Zhao Jindong, General Mana...
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