免费性爱视频-泡妞18视频-欧美一级淫片-中文字幕免费高清在线观看-香蕉视频网站在线观看-国产福利91-国产网站免费-在线观看网址你懂的-麻豆亚洲av熟女国产一区二-日本天堂影院-一边吃奶一边操-999视频在线-久热这里只有精品6-香蕉视频成人在线-午夜精品无码一区二区三区-日本黄页网-黄色在线观看国产-每日av在线-精品色哟哟-福利片第一页-欧美男同gay巨大男吊-男女睡觉视频-久久国产视频网-男人天堂手机在线观看-欧美日韩综合精品

Zhejiang Jiekai Technology Co., Ltd. is a technology-based company specializing in energy-saving renovation of industrial circulating water systems. It was established in 2011 and is headquartered in Hangzhou, Zhejiang. The company has strong technical strength and a first-class team with professional expertise in fluid, machinery, HVAC, electricity, and rich experience in technological innovation, design, and installation. It has multiple invention patents, computer software copyrights, and utility model patents in areas such as water pumps and cooling towers.