was established in 2005. We are a professional high-tech companyspecialized in R&D, manufacturing, sales and service for police Bluetooth communication systemand devices.

成立于2005年，是一家专业从事警用蓝牙无线通讯装备的研发、生产、销售及服务的高新技术企业。公司在公安、交警、刑侦、缉毒等无线通讯装备领域，具备雄厚的技术基础和广泛的产品应用经验。

Carbon sign Innovation Co., Ltd. was established in 2024, headquartered in Shenzhen, the innovation capital of China. It is a high-tech enterprise dedicated to providing the advertising signage industry with comprehensive automation solutions for the entire 3D printing process. The company was founded by industry experts who have been deeply involved in the advertising signage field for over twenty years. Leveraging a profound understanding of traditional processes and a precise grasp of market needs, it aims to drive industry transformation through innovation in 3D printing technology. Focusing on the entire automation chain from design to production of small-scale signage as its core business, the company is committed to revolutionizing the sector.

Guangdong South China Institute of Environmental Protection Industry Technology Co., LTD. (hereinafter referred to as "South China Institute") is a new research and development institution and a new think tank specialized in environmental technology industrialization established in response to the national high-quality development strategy and the spirit of high-level ecological protection, with a paid-in capital of 50.01 million yuan.

深圳市英飞尔电子有限公司成立于2009年，是一家专业从事家用电器控制器和消费电子产品开发和制造的企业，主要产品为PCBA和遥控器。公司总部位于中国深圳，在越南、巴基斯坦、印度建立分公司。专业生产BLDC风扇控制器、风冷控制器、pcb、洗衣机、智能遥控器等先进产品。

Shenzhen Infell Electronics Co., Ltd Established in 2009, we are a professional enterprise engaged in the development and manufacturing of home appliance controllers and consumer electronics products, with our main products being PCBA and remote controllers. The company is headquartered in Shenzhen, China and has established branches in Vietnam, Pakistan, and India. Specializing in the production of BLDC fan controllers, air-cooled controllers pcb、 Advanced products such as washing machines and smart remote controls.