I would like to ask the experts here
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Api682 specifies six types of structures for modular mechanical seals; then why are there so many different types of mechanical seals available on the market?
Since each company has its own products, and infringement issues are involved, the situations vary from one case to another. Furthermore, there are many types of mechanical seals; API682 is an international standard, written by foreign experts and translated in China. There are various types of seals available domestically