The LA CN mark signifies that the piece was made in China and is made from copper-nickel alloy. However, there are several other markings on Chinese-made jewelry pieces that can help identify their authenticity and quality.

2024年5月6日 · LA CN generally does not provide certifications for their gold jewelry, as their offerings are often gold-plated rather than solid gold. Customers seeking assurance on metal purity should be aware that the absence of such certifications means verifying gold content through LA CN may not be possible.

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2025年1月28日 · What Does LA CN Mean In Jewelry? “LA CN” on jewelry means that the jewelry was designed by L.A. GEM and Jewelry Design, Inc. and manufactured in China. It’s common for jewelry companies to outsource the manufacturing process to other countries, including China, due to the lower labor and production costs.

Many counterfeit pieces of jewelry have fake La Cn markings, so being able to identify the real markings can help you avoid being ripped off. The answer to this question is a resounding no. While showering in gold-plated jewelry may seem like a fun and luxurious idea, it …

2024年1月5日 · What Does LA CN Mean On Jewelry? La is the hallmark for La Gem and Jewelry Design. The stamp distinguishes the brand and its jewelry items apart from the rest. This mark on the jewelry piece denotes that the design and style belongs to La Gem and Jewelry Design.

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带CAN通信接口，与电池管理系统BMS和星星充电后台监控系统实时通信，对锂动力电池的充电进行优化和可靠的保护。 星星充电参与了国内所有充电标准的起草，并作为中方代表参与IEC国际标准的起草，同时也是国家标准委员会 指定的国内大功率充电两家牵头单位之一。 在提高能源利用效率，促进结构调整和节能减排，助力民族汽车工业屹立于世界之巅，推动国家新能 源产业发展壮大的事业上，星星充电永远不遗余力。 星星充电，拥有全球规模最大的智慧充电网络，最大 …

结果表明，La−N电荷桥是CO2活化、COOH*快速形成和CO脱附的关键活性中心。 本工作有望为稀土单原子催化剂在光催化太阳能转化中的应用提供理论指导。 Peng Chen, et al, Rare-Earth Single-Atom La−N Charge-Transfer Bridge on Carbon Nitride for Highly Efficient and Selective Photocatalytic CO2 Reduction, ACS Nano, 2020. DOI: 10.1021/acsnano.0c07083. https://dx.doi.org/10.1021/acsnano.0c07083.