亚洲 成人 小说 校园 激情,夜夜躁狠狠躁日日躁AV,秋霞欲久久52,婷婷屄屄视频

Stock abbreviation:
Chenguang New Materials
Stock Code: 605399

Research patent

No. Patent Name Announcement/Announcement Number Announcement/Announcement Date
1 The invention relates to a preparation method of 3-isocyanate propyl trialkoxy silane CN109400640B 2021-02-23
2 The invention relates to a combined preparation method of trimethyl-monoxysilane-hexamethyldisilazane CN109232633B 2020-12-25
3 The invention relates to an improved device for pickling resin in si69 production CN212068766U 2020-12-04
4 The utility model relates to a recycling device for methanol used as solvent in chemical production CN211677661U 2020-10-16
5 The utility model relates to an waste gas recovery device used in a chemical enterprise CN211676993U 2020-10-16
6 The utility model relates to a trimethoxy-hydrogen-silane filling and loose tail gas treatment device CN211328819U 2020-08-25
7 The utility model relates to a hot water recycling device with pressure CN211329324U 2020-08-25
8 The invention relates to a raw material dosing device for γ-chloropropyl trichlorosilane synthesis CN211329361U 2020-08-25
9 The utility model relates to a device for cleaning a tubular condenser CN209605655U 2019-11-08
10 A novel gas-solid dust removal device CN211328620U 2019-11-08
11 A device for absorbing low solubility ammonia CN209392990U 2019-09-17
12 The invention relates to an intake device for combustion reaction of chlorine gas and hydrogen gas CN209263025U 2019-08-16
43 Records
久久综合香蕉国产蜜臀AV| 亚洲美女高清在线| 人人澡人人摸| 免费看无码自慰一区二区久久妖精| 又大又紧又粉嫩18p少妇| 国产免费又黄又爽又色毛| 国产成人777777| 国产高清无码一区二区| 久久久久成人精品免费播放动漫| 欧美性高潮| 欧美熟妇另类久久久久久多毛| 欲妇荡岳丰满大乳无码久久久久| 嗯啊好舒服视频| 成人爽a毛片一区二区| 干熟女| 香蕉色在线| 亚洲深夜福利| 精品国产午夜一区二区三区| 日本无码免费在线| 777毛片| 麻豆乱婬一区二区三区| 九九热伊人| 国产精品无码电影| 成人au免费视频| 性无码一区二区三区上海少妇| 日本成人在线观看了| 日本韩国二级三级| 百条麻妃ev在线播放| 精品国产午夜一区二区三区| 男ji大巴进入女人视频ai明星| 四川美女BBBB爽爽毛片| 日本内射| 私人无码毛片| 日韩无码电影| 高清免费日本视频| 67194熟妇| 国产人与ZOXXXX乱叫| 国产精品巨作AV| 精品无码一区二区三区天香| 欧美又大又粗| 亚洲国产精品无码久久久久久久久久久|