First of all, learn to look at pictures and understand what designers draw. Then learn to quote according to the figure. Then speed up the quotation and sales, and some technical things. Generally, those who have done sales will soon enter the industry. Those who haven't done sales will generally learn like other colleagues, and they will get it slowly. When making cabinets, many details should be considered for customers ~ hehe, if you want to learn, do it if you want. Tina is the happiest.