Fasteners are divided into two categories: one is a standard part and the other is a non-standard part.
Standard parts: consisting of national standards, but not enforced. GB/T****** GB stands for national standard T represents recommendation, which is the country
Recommended standard.
Non-standard parts: The specifications, dimensions, mechanical properties and materials of the fasteners are determined by the user. According to the actual use of the user, according to the map
Paper making standard parts.
Ningbo Beilun Qunli Precision Machinery Factory specializes in copper, aluminum, iron and other hardware, non-standard parts (special-shaped products), non-standard fasteners and so on.