D500 DOOR CLOSER
https://www.dorrenhaus.com/Product-Details.html?_l=zh_CN&product_id=112-
Product Category
Doors & Gating System
Door Weight:20-45KG &40-65KG & 60-85KG
Power Size:2# & 3# & 4#
Door Width:850-950mm&900-1000mm&1000-1100mm
Light & Medium Duty Economical Model Door Closer
Hold Open Function Optional