午夜精品久久久久久久,91精品国产高清久久久久久久久,亚洲成人一区二区三区,国产成人av综合,国产精选自拍,精品久久久久久久久中文字幕 ,91亚洲国产亚洲国产亚洲

call anytime

135 1576 7513

call anytime

135 1576 7513

news

home - news

Sewing machine also known as side sewing machine, edge machine, and bone car, generally divided into three lines, four lines, five lines. The main function is to prevent the sewing head from getting hairy. The sewing machine can not only be used for edge binding, but also used to sew T-shirt, sportswear, underwear, knitting and other fabrics. Sewing machine cutting and sewing can be carried out simultaneously, the thread trace is like mesh, also suitable for elastic fabrics.

The stitching can be divided into single line, double line, three thread, four thread, five thread and six thread.

1. Single line sewing is a single needle and a thread trace, mainly used to sew the edge of blanket; overlock machine

2. Double line sewing is a single needle double line trace, mainly used to sew the elastic parts such as the bottom of elastic sweater;

3. The three thread sewing is a single needle and three thread trace, which is commonly used in general knitting clothing, especially for some low-grade clothing pieces;

4. Four thread sewing is a double needle four thread trace, which increases one needle line than the three-wire sewing, and the strength is improved. It is used for sewing or stretching the garment pieces of high-grade clothing, and the parts with strong friction such as shoulder and sleeve, especially the sewing of coat;

5. The five thread sewing is a double needle five thread trace, which has the advantages of further improvement of fastness and production efficiency, and better elasticity than four thread stitching, and is commonly used in the sewing of coat and mending underwear.

Other news

绥宁县| 绥江县| 达孜县| 丰原市| 乌兰察布市| 睢宁县| 济南市| 武乡县| 龙岩市| 青浦区| 通河县| 城口县| 平顺县| 岑溪市| 抚州市| 镇沅| 咸阳市| 焦作市| 荔浦县| 阳朔县| 阿克苏市| 舞钢市| 社旗县| 临江市| 巴彦淖尔市| 白城市| 清远市| 海晏县| 信丰县| 缙云县| 盐山县| 崇州市| 安龙县| 荆州市| 密山市| 梧州市| 阜新市| 珠海市| 泽州县| 徐州市| 阿勒泰市|