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The main types of hoop are roughly divided into English, American, and German styles, with additional derivative products such as tubular European standard hoop.

American Standard Throat ClampEnglish-style throat loom: Material isDeutsche Standard Larynx ClampIron surfaceEnglish standard throat clampGalvanized, commonly known as iron galvanized, has moderate torque, low price, and a wide range of applications.

German-style throat clamp: Made of iron with zinc coating, its buckle distance is formed by stamping, with high torque and a moderate to slightly higher price, limited by high production costs, it has a low market share.

American-style throat clamp: There are two types, iron galvanized and stainless steel. The main difference is the spacing of the buckles, which are hole-shaped (i.e., eye buckles). The market is mainly stainless steel, which is mainly used in automotive parts and other high-end markets. The price is higher than the other two.