This implies that the speaker is referring to an alternative that didn't happen, but must have -- a type of the subjunctive. In case the intent is usually to claim that it did materialize, and also to approve of that, then it may be worded as: 目前我国智能锁市场正规智能锁产品主要有智能锁传统厂商、国际家电巨头、国内智能科技品牌这三类。 Shein and Temu https://mariowbunv.answerblogs.com/36781098/the-best-side-of-financial-settlements-lawyer-in-dha-karachi-pakistan