DIN 81312-1987《船用重型门的无弹键箱式锁》
This standard lays down the main dimensions for interchangeability, materials, design and specifies requirements of rim-locks without latch-bolt for heavy hinged doors on ships.
This standard lays down the main dimensions for interchangeability, materials, design and specifies requirements of rim-locks without latch-bolt for heavy hinged doors on ships.