Acme Locks Limited supplies Heavy Duty Cylindrical Lock. Acme Locks Limited is the manufacturer of different types of door locks. Heavy Duty Cylindrical Lock is available with six pair pins cylinder. Heavy Duty Cylindrical Lock is available in different combination of finishes. It is made by special purpose imported machines, forging equipment`s, ultramodern press shop, machine shop, using high density imported lacquers & electrophoretic lacquer coating. These locks have the application of pushing the button inside where as locks the knob outside and turning the inside knob or operating key outside releases the button automatically.