1. Stainless steel composite pipe: The material is an iron pipe, and the outside is plated with a stainless steel layer. It is relatively heavy, but it is easier to rust over time.
2. Stainless steel pipe: The entire pipe is lighter than stainless steel, and its load-bearing capacity is not as good as that of composite pipes, but it is not easy to rust. Stainless steel materials are divided into several types: 200, 201, 300, 301, 304, etc. The material on the market is generally 301, and 304 has the best effect followed by 301.

Answers

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