Specifications:
The document lists various models of micro switches and related components, such as terminals, plungers, and push rods. The switches are available in different specifications, including current ratings of 0.1 to 21A and voltage ratings of 125V/250VAC. The dimensions for some models are provided, such as 27.8*15.9*20.5 mm and 27.8*15.9*10.3 mm. The switches are described as having a DPDT (Double Pole Double Throw) structure.

Components and Materials:
The document mentions the use of high-temperature resistant thermosetting materials to prevent softening during high current operations. Silver contacts are used for their long lifespan and high reliability. The casing design increases the creepage distance between the contact point and the terminal, enhancing safety and performance.

Design and Functionality:
The switches utilize a reed mechanism for good electrical conductivity and long service life. The document emphasizes the importance of avoiding high-temperature softening to ensure stable switch performance.

Manufacturer Information:
The components are manufactured by Yueqing Tongda Wire Electric Factory, which is repeatedly mentioned throughout the document.