ปัญหาทั่วไปสามประการในการซื้อประตูอลูมิเนียมสะพานหัก & อุปกรณ์หน้าต่าง
16 Sep, 2020Many customers who don’t know much about broken bridge aluminum door and window equipment are prone to misunderstandings.Some Sales personnel of manufacturers beat around the bush when selling equipment . Today I will introduce three common problems. 1.Only responsible for selling, not responsible for guaranteeWhen many consumers buy broken bridge aluminum doors and windows equipment, they always ignore after-sales service. In response to this loophole, many manufacturers only have product ......