天堂中文在线官网Iwww.色94色.comI狠狠撸视频I人妻无码一区二区三区久久I久久香蕉影院I福利网在线I豆花av在线I一区二区三区91I麻豆视频在线免费观看I欧美xxxx视频I国产1区2区3区I免费在线观看小视频Ia猛片免费播放I午夜福利一区二区三区I中文字幕无码人妻少妇免费I欧美激情在线看I四虎网站在线I日韩在线精品强乱中文字幕I99reeI97精品人妻一区二区三区香蕉I国内久久I日韩一区在线播放I日本特黄一级I女的被男的操I夜夜做天天干I91污网站

Contact Us

220V Cooling Fan of the invention

Date: 2015-6-4   Click: 1549 Times

"220V Cooling Fan" originated in 1830, a man named James Byron was inspired by American watches from the structure, the invention can be fixed on a ceiling, with a spring-driven mechanical fan. This fan blades rotate slowly bring cool people feel cool, but have to climb the ladder to the winding, very troublesome. In 1872, a Frenchman named Joseph has developed a turbo start by clockwork, gear drive chain means mechanical "220V Cooling Fan", a mechanical fan the fan than Byron more sophisticated invention, use is also convenient . In 1880, the first time the Americans Shule blade mounted directly on the motor, connect the power supply, the rapid rotation of the blades, cool breeze blowing, which is the world's first "220V Cooling Fan".

Back to: Industry news

+86-0769-83660708

Home Product News Contact

主站蜘蛛池模板: 龙州县| 师宗县| 台山市| 乐东| 宁津县| 赣榆县| 牡丹江市| 林西县| 拉萨市| 淮阳县| 克拉玛依市| 洪洞县| 开化县| 辽源市| 泽库县| 盘山县| 海阳市| 泊头市| 博爱县| 调兵山市| 海城市| 和田市| 双流县| 黄浦区| 四平市| 乐安县| 巴楚县| 宜兴市| 原阳县| 玉门市| 锦州市| 嘉义县| 龙胜| 长沙市| 郁南县| 云霄县| 河曲县| 丰城市| 丰镇市| 新民市| 横山县|