Dongguan Zuolong Machinery Co., Ltd. is a company that has famous brands, networks and management expertise. In the future, Zuolong Machinery keeps carrying forward the enterprise spirit of 'morality, pragmatism, and innovation'. We devote ourselves to seek practical innovation in business management. We adopt the advanced management mode for modern enterprise and strive to become a leading company in the industry. Zuolong Machinery's automatic cutting machine is widely used in various industries and fields. Zuolong Machinery's industrial sewing machine is various in types and styles to meet the different needs of customers. The high quality will secure its leading status in the market place. It has been sold over Europe, America, Southeast Asia, Mainland China and other countries globally. thread trimming machine is tested by relevant national departments in the aspects of quality and performance indicators. It is ensured to be a high-quality battery with excellent performance. our company's products are reliable in quality, various in type and affordable in price. Customers in need are welcome to contact us. We sincerely hope to reach friendly cooperation, common development and mutual benefit with you!

Is the outer thread of the bolt right-handed and the inner thread of the matching nut left-handed? Because I cut the nut axial with the cutting machine, why? 5 The outer thread of the bolt is right-handed, and the inner thread of the matching nut is also right-handed.If you look at it in perspective, you will understand it.Carefully observe,What you said was impossible,Violating the threaded connection.It's right-handed,

Can household sewing machines sewing knitted fabrics? Then you have to see which one to run '~ If it's a simple sewing '~~ Adjust the teeth 'can also be used ~ No problem.