--- title: "The superhard materials concept is repeatedly active, HHWW has two consecutive trading limits" type: "News" locale: "en" url: "https://longbridge.com/en/news/261963370.md" description: "The superhard materials concept is repeatedly active, HHWW has two consecutive limit-ups, SF Diamond rises by 10%, and Huifeng Diamond follows suit" datetime: "2025-10-21T01:36:20.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/261963370.md) - [en](https://longbridge.com/en/news/261963370.md) - [zh-HK](https://longbridge.com/zh-HK/news/261963370.md) generator: "portal-rs" --- # The superhard materials concept is repeatedly active, HHWW has two consecutive trading limits The superhard materials concept is repeatedly active, HHWW has two consecutive limit-ups, SF Diamond rose by 10%, and Huifeng Diamond followed suit ### Related Stocks - [300179.CN](https://longbridge.com/en/quote/300179.CN.md) - [600172.CN](https://longbridge.com/en/quote/600172.CN.md) ## Related News & Research - [ETF Savings Plans Boom in Switzerland – But Not Because of AI](https://longbridge.com/en/news/296473012.md) - [What hike? Why Wall Street is abandoning its call for higher rates.](https://longbridge.com/en/news/296128417.md) - [Nasdaq Futures Plunge as Rising Bond Yields Drive Chip Selloff](https://longbridge.com/en/news/296216952.md) - [Flash Sports & Media faces Nasdaq trading suspension over listing rule breach](https://longbridge.com/en/news/296655108.md) - [Vector Science files US provisional patent for orthopedic tissue-regeneration peptide platform](https://longbridge.com/en/news/296483037.md) --- > **Disclaimer: This article is for reference only and does not constitute any investment advice.**