Method of testing for rating residential water heaters 家用热水器等级的测试方法
2.
Domestic water heaters enclosures 家用热水器及配件
3.
A . o . smith corporation has been founded for 100 years till 1974 and developed residential energy - saving water product lines at the same year 1974年a . o .史密斯公司成立100周年，同年开发了家用热水器节能生产线。
4.
The main product of our company is si ji yangguang household solar energy water heater ; the other products are solar energy engineering machine and hot - air pump water heater 公司主要以“四季扬光”牌太阳能家用热水器为主，同时生产太阳能工程机及空气源热泵热水器。
