The 40mm Hole Size Push Button Switch is a high-quality product manufactured by Onpow Push Button Manufacture Co., Ltd., a leading manufacturer and factory based in China. These switches are designed for easy installation and come with a reliable and durable construction to ensure prolonged use. This push button switch is perfect for industrial applications and is ideal for various control and power circuits. The 40mm hole size is a standard size that fits most control panels and is easy to install. The switch is available in various colors to ensure easy identification and functionality. Onpow Push Button Manufacture Co., Ltd. ensures that their switches are of the highest quality and meets the international standards. They are experts in push button switches, and their products are widely recognized in the industry. ONPOW has a commitment to provide innovative and reliable products with the latest technology. In summary, the 40mm Hole Size Push Button Switch manufactured by Onpow Push Button Manufacture Co., Ltd. is a superior quality product made by an experienced and renowned Chinese manufacturer. It is durable, easy to install, and perfect for industrial applications. Contact ONPOW today to get your hands on this high-quality product.