https://buildings.honeywell.com/ca/fr/products/by-category/fire-life-safety/control-panels/accessories-and-parts/housings-and-hardware/dh-series-door-holder-acccessory
DH Series Door Holder Acccessory|Honeywell Building Automation
Gamewell-FCI's DH Series of electromagnetic fire door holders are constructed of durable die-cast metal finished in high-lustre double chrome or brass plating.
dh seriesdoor holderhoneywellbuildingautomation
https://www.dhfarmmachinery.com/categories.html?filter_set%5B%5D=1093&filter_set%5B%5D=869,1626,41870
10000 Series - DH Farm Machinery
seriesdhfarmmachinery