麻花豆星空天美糖心mv-星麻花传媒mv-星空天美梦幻mv免费-天美麻花星空果冻mv-62星空天美梦幻糖心mv-天美电影免费在线观看The key of the pasted bolt is used in riveting place with large transverse load, which is widely used. Because of its thick head and corrosion resistance, the flat cone head bolt is often used in riveting places with obvious erosion such as ship hull, water storage tank of heating furnace, etc. Countersunk head bolt and 1200 countersunk head bolt are mainly used for riveting places with smooth surface and small load. Semi countersunk head and color rivet 1200 semi countersunk head bolt are used for riveting places with smooth surface and small load. Flat head and flat round head bolts are mainly used for riveting places of non-metallic materials such as metal plates or leather products, white canvas, wood and so on. Large flat head bolt is used for riveting place of non-metallic material. Half space central bolt is used for riveting place with small load. The key point of headless bolt is the riveting place of non-metallic material.

麻花豆星空天美糖心mv-星麻花传媒mv-星空天美梦幻mv免费-天美麻花星空果冻mv-62星空天美梦幻糖心mv-天美电影免费在线观看However, the production and manufacturing areas of Decal bolts are mainly concentrated in coastal cities. The production and manufacturing of Decal bolts involves the transportation of raw materials such as aluminum and iron, the spread of electroplating technology, and the technological content of spraying or air oxidation. This undoubtedly creates the inherent standard for companies in coastal cities to produce and manufacture pasted bolts.

Hollow bolt is light in weight and weak in head, so it is used for riveting place of nonmetal material with small load. Tubular bolt is used for non-metallic riveting place without load. The key of the sign plate bolt is to rivet the factory name plate on the equipment, machinery and equipment. Big cap rivet is a kind of bolt used for single and double side riveting, but it must be riveted by using common tools - riveting gun (manual, electric and movable). This kind of bolt is very suitable, and it is troublesome to select the riveting place of general bolts (which must be riveted from both sides), so it is widely used in engineering construction, cars, ships, airports, equipment, household appliances, furniture and other commodities. Among them, the open mouth type flat round head is the most widely used, and the countersunk head is suitable for riveting places which must be smooth, and suitable for riveting places with higher load and certain sealing characteristics. It is another kind of single and double-sided riveting bolts. When riveting, the exposed core of the top of the bolt head is knocked with a hammer to make it flush with the inner hole of the head. The semi hollow rivet is riveted in practice. It is quite convenient. It is not easy to select the riveting place for general bolts (riveting from both sides) or (lack of riveting gun). Generally, flat round head is used for core riveting, and countersunk head is suitable for riveting places where the surface must be smooth.