朗科科技：DRAM产品主要包括DDR3、DDR4、DDR5等

Group 1 - The core viewpoint of the article is that Langke Technology (300042.SZ) has clarified its traditional DRAM and NAND products in response to investor inquiries on an interactive platform [1] Group 2 - The company's traditional NAND products include solid-state drives, mobile solid-state drives, flash drives, and storage cards [1] - The DRAM products primarily consist of memory products used in personal computers (PCs), including DDR3, DDR4, and DDR5 [1]