Three-way connectors are used in various industries, and can be categorized into several types accordingly:

1. Carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, aramid, PPC, etc., are categorized by material.

2. Divided by production methods, it can be categorized into topping, pressing, forging, casting, etc.

3. Divided by manufacturing standards, it can be categorized into national standards, electrical standards, water standards, American standards, German standards, Japanese standards, Russian standards, and so on.