Harbin Sayyas Windows Co., Ltd.

Sayyas, founded in Harbin in 1998, researches and manufactures custom energy-saving aluminium-clad wooden windows, including sliding doors, sunrooms, curtain walls and high windows.

For doors and enclosures, specification prioritises security, fire resistance where applicable, acoustic and thermal insulation and hardware durability under repeated use.

For buyers seeking a Chinese door supplier, security and fire ratings, standard and made-to-measure sizes, included hardware and after-sales service should be confirmed.