The next three brief introductions of Sihekou

Snap button is a kind of button, commonly known as spring button, sewing button. Snap-fasteners are combined with S-shaped springs. They are divided into four parts ABCD from top to bottom: AB parts are called female buckles. The broad sides can be engraved with a hole in the middle and two parallel springs on the side; Called the male deduction, a dot is highlighted in the middle. After the dot is pressed into the hole of the female buckle, it is clamped by the spring, resulting in opening and closing force to fix the laundry.

According to the style points, snap buckle is generally divided into: white buckle, fisheye buckle, plastic snap buckle, plastic surface snap buckle, with diamond snap buckle and so on. Snap face points, snap buckles are generally divided into: smooth snap button, flower snap button, with drill snap button, fisheye button and so on. According to the material points, snap buckles are generally divided into: metal snap fasteners, resin snap fasteners (also known as plastic snap fasteners), plastic surface snap fasteners and so on. However, if there is no special explanation, only the snap buckle is generally referred to as the metal snap button. The model of the snap-on deduction is determined by the size of the next three parts. The common model is 655,633,831. Three BCDs are generally referred to as "the next three," and the surface of the snap closure (A) can be changed at will, but the next three generally have their general rules. Three models under the 655 model can be used with surface fasteners with a diameter of less than 10mm; three models under the 633 model can be used with face fasteners with a diameter of 11-15mm; three models under the 831 model can be used with a surface fastener with a diameter of more than 15mm.

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