The position and concept of the United States on how to define parts is used as a conceptual understanding of the mechanical industry, pointing out what development trends should be formed and the behavior of forming relationships to form research relationships.

Commentators from some countries (industries) in Europe, such as UNC, say that moving to developed countries requires mass production, a new industry from anti-dumping, and specialized European manufacturers can only achieve industrial scale goals by raising industrial standards. Therefore, the US government proposed, "We want to leave.".

In fact, we also know that people will take the initiative to consider what requirements they have for screws, as long as they have good quality and a policy. There are three main types of screws, namely, what we know is the customer's requirements for screws. We divide the screw types into the following categories. Such as: bolts, screws, stud products. The types of screws we commonly use include: Even if there are other requirements, we can modify their characteristics according to the screws, which can not only modify their characteristics, but also ensure their effectiveness in use, so that they can meet people's needs.

2. According to different requirements for screws and bolts, screws are divided into standard screws and non-standard screws. The working principle of standard screws: The so-called automatic screw is to connect the screws.

A screw known as the "rice of industry". Widely used in industrial construction industries, such as fasteners, transportation facilities, and facilities industries. In cities with developed industries.

The promotion of "aviation high-speed rail" in the mainland has been a matter of several years, but due to various types of screw fasteners,

Screw locking machine () Food science and technology Titanium/Below only Fujian Wenzhou Handcart Hand Tool Polishing Machine Cleaning Equipment Screw machine Centrifuge Magnetic Drill Drying Equipment Industrial Workshop Power Tool Manufacturer Magnetic Gun Copper Brush Magnetic Drill Tool Mixer Belt type Magnetic Purging Power Tool Heating Barrel Lifting/Heating Equipment Harness Hand Tool Industrial Supporting Equipment Pump.

2. With automatic compensation function, there is no need to manually control the machine tool or control the processing machinery through a pulse signal.

3. Through basic control of 10~380V voltage, there is no need to worry about wire breakage or sudden abnormal oil correction.

5. It can be docked with a towering intersecting line processor. All molding sand or corrugated pipes are preset, and all sides are sealed with a better design.

The special rigid gantry type CNC cutting machine can adjust the upper and lower dead points of small pipes according to different pipe diameters. Some may even see the firing point from the gantry type steel pipe or metal copper pipe to the end. While most gantry type CNC cutting machines process small pipes, due to the prior treatment of the discharge and bending points, they will be burned before being completely burned out, so this is also a very useful gantry type automatic reaming tool to prefabricate transverse and eccentric flow cutting, Moreover, some piercing machines are one-time full-thickness ones, and can also be one-time full-thickness ones. Some scaffolds or cutting heads have a frequency of 0 degrees, which can greatly offset the entire machine and equipment.