Cooling cigarette filter and cigarette
AssigneeChina Tobacco Hunan Industrial Co., Ltd.
InventorsWei Luo, Kejun Zhong, Wen Du, Lanying Xie, Liangsheng Qin, Jianhui Wen, Duo Ding, Guoyong Xie, Jianxin Ren, Zhiwei Sun
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