Suitable for door widths up to 6 meters high and five meters less than the average weight of the shutter up to 400 kg
- off from a single point is inside or outside the building. In addition, there must be another door is the entrance into the other one. Or make
a small door doors - closed assembly is in use. Pull the chain to open - closed door. Then locked with chains, earrings, chain lock (the door should be opened up to the maximum. Do not swing open - closed door).
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