Freesmal slot - om. Freesmal slot - om. D DH4R. 40 40 40 40 40 40 40 40 43 Narrow-style locks: An overview of Nemef's narrow-style lock series and their. 40 40 40 40 40 40 40 40 43 Narrow-style locks: An overview of Nemef's narrow-style lock series and their. OPLEGSLOTEN