How to make the advertising shirt? What is the main purpose?

A cultural shirt or T-shirt with advertising slogans or patterns. Because of its low price and low advertising cost, advertising T-shirt is actually a cultural shirt. Fabric → fabric inspection → first piece production process confirmation (fabric (texture, color, feel, etc. ), matching (checking whether the clothing style is consistent with the samples and data), measuring (measuring size) → cutting → cutting inspection → sewing → first needle inspection → all samples → ironing → all samples again → packaging → needle inspection again → general inspection → warehousing and unloading. In everyone's eyes, the poor quality of advertising shirts is a misunderstanding. General advertising T-shirts reflect the image of the company. Even if you give them away for free, users should feel like wearing them and wear them often. So the quality should keep up. Now people's requirements for quality are getting higher and higher. If you just pursue the price advantage, it will only lower the grade of T-shirts and even lower the products you want to promote. Another thing to pay attention to is size. T-shirts produced by each factory have their own sizes.