หน้าต่างบานเปิดอลูมิเนียมคงที่กระจกดีไซน์อเมริกันสมัยใหม่หน้าต่างเคลือบสองชั้น

Party A: Foshan GELLJa Doors and Windows Technology Co., Ltd. supply Guangzhou Mincheng Construction Engineering Co., LTD Supply method: Product (excluding transportation and installation) Product Content: the content specified in the engineering product drawing, and the content added in the relevant change notice. Including aluminum alloy profiles, accessories and other costs. Party B shall be responsible for all expenses incurred during the installation of all aluminum doors and Windows Qualit