Many customers who need bolts usually buy a lot of defective products because of their lack of experience. They not only spend a lot of money, but also delay the construction period, which endangers the product quality of their own enterprises. It can be said that if they compensate their wives and lose their soldiers, they will lose a lot of money. How can they pick the bolts that they think of? The masters of our factory for more than ten years will teach you the working experience

1. Look at the appearance:

A. Does the top of your head shine

B. Are there cracks, cracks, scratches on the top of your head

C. Head is round mouth, umbrella head, small flat head, or frosted.

D. Is there a protuberance at the root due to the crack of the main mode

E. Is the wound leveled

F. Is the rivet bar in the middle of the top of the head, otherwise it will bend and bend

G. Is the rivet bar scratched and uneven

2. Whether the specifications of each position are in line with the production and manufacturing regulations. The important index values such as the diameter from the beginning, the diameter of the rod, the length to the depth of the rod must be measured more than two or three times, and 10-20 samples should be inspected each time.

In the case of accurate measurement, we must adopt the standard measurement size and standard precise measurement posture, so as to ensure the effectiveness of the accurate measurement. Every bolt in the original factory of Datong Hardware Products Co., Ltd. is inspected by the machine teacher at all times to ensure that once the problem is found, the machine will be shut down immediately to remove the substandard goods, and the unqualified products will be removed Machine teacher fu MA calibration equipment, non-standard rivets to ensure the orderly development of production and manufacturing, not only to ensure product quality, but also not to harm the production cycle, in the shortest possible time will be good goods according to the high-quality service items delivered to customers with requirements, warmly welcome interested customers to visit our factory, we will do our best to serve every one of you A request!