上交所官网显示，印制电路板（PCB）制造商超颖电子电路股份有限公司主板IPO通过上交所上市审核委员会审议。

Group 1 - The core point of the article is that the PCB manufacturer, Super Electronics Circuit Co., Ltd., has passed the listing review by the Shanghai Stock Exchange for its main board IPO [1] Group 2 - The company specializes in the manufacturing of printed circuit boards (PCBs) [1] - The approval from the Shanghai Stock Exchange indicates a significant step towards the company's public offering [1] - This development may enhance the company's capital raising capabilities and market presence in the PCB industry [1]