久久久久国产精品aⅴ天堂,成人性生交A片免费直播APP ,男女扒开双腿猛进入爽爽免费,日本JAPANESE少妇高清

Hangzhou Heshan, the biggest manufacturer of elevator air conditioner in China.

Heshan specializes in providing solutions for elevator car air, persistent struggle has been more than 20 years. Adhering to the enterprise development vision of "creating safe, healthy and comfortable ladder environment", the supply of "Heshan" brand elevator special air conditioning has made every effort to meet the different needs of customers. It has provided more than 16000 customers with products and services around the world.

Heshan, the leader in the elevator and air conditioning industry, has continuously broken through new technologies and recently successfully introduced a "smaller size,higher energy efficiency ratio, very suitable for super high rise elevators, and more flexible installation positions." Meet the new national standard elevator, and other advantages of the NK series of small and efficient intelligent elevator special air conditioning. The series of products are divided into "horizontal" and "vertical" two types of appearance, the use of multi-file regulation of wind speed DC motor, the use of R410A environmental refrigerant that will not damage the atmospheric ozone layer. The frequency of power supply can be selected by 50Hz and 60Hz, and can also be equipped with remote control, which can meet the various needs of customers at home and abroad.