Haiyi is a famous aluminum window and door manufacturer of China.We have 5 the newest production lines with advanced production equipment, first-class design technology and highly quality control system, that annual output of aluminum windows and doors amounts to 200,000 square metres.
All windows and doors are produced strictly on the requirements of ISO 9001 international quality certification systems.
Haiyi will always insist on the quality and reputation ˇ°double firstˇ±, good faith as customer serv...
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