The product uses zinc alloy (ZDC) as its main material and features a matte chrome plating (MZCr) finish to enhance both appearance and corrosion resistance. The manufacturer assigns it a key type labeled “A,” making it easy for users to identify. Moreover, it fits plate thicknesses ranging from 0.8 to 2.3 mm, which allows for flexible application across different setups. In addition, each set includes two keys, offering greater convenience and security during use.

Ceiling box cover and measuring equipment inside the bus

The keyless type A-195-2 has been discontinued.