According to the material classification: carbon steel, stainless steel, alloy steel, pvc, plastic and so on
Connection methods: thread connection, welding, welding, socket
According to its manufacturing process can be divided into forging and casting two kinds.
forging
Forging refers to the forming of steel ingot or round bar after heating forging, and then machining thread on lathe.
casting
Casting refers to the melting of steel ingot into a fixed tube hoop model after cooling.
Pipe collar - Pinyin guan gu, collar, is a fitting commonly used in industrial pipe connections. Also known as the pipe hoop.
Usually water electrician in the process of use is also called direct.
Purpose: A hoop is a short piece of pipe used to connect two pipes. Also called external connector. Because of its convenient use, the tube hoop is widely used in civil construction, industry, agriculture and other fields.