If used in quality industry, LCR is enough, and LCZ is used in R&D and design or special occasions. LCZ is much more expensive, which is a waste. There are many complex brands in the market, with great price difference and deep water.
It is recommended to buy Changzhou Tonghui products, the quality is ok. For example, 28 1 1 and so on. I'm in product development, and I use 28 10B. 1000-2000 RMB is almost enough. Don't buy those imitations.