Group 1 - Guangzhou Guanghe Technology Co., Ltd. has applied for a patent for a method of producing blind holes in circuit boards, which aims to improve the accuracy of the blind hole positioning and enhance the quality of the circuit boards [1] - The patent application was filed on April 2025, and the public announcement number is CN120379172A [1] - The company has a total of 397 patent information entries, indicating a strong focus on innovation and technology development [2] Group 2 - Guangzhou Guanghe Technology Co., Ltd. was established in 2002 and is primarily engaged in the manufacturing of computers, communications, and other electronic devices [2] - The company has a registered capital of 425.265 million RMB [2] - It has participated in 96 bidding projects and holds 143 administrative licenses, showcasing its active involvement in the industry [2]