rolling fire shutter, coiling fire door, insulated fire rated roller shutter

Lift, drop at stop test ng mga manual button sa magkabilang gilid ng fire shutter. Fire rolling shutter ay dapat na magagawang upang gumana alinsunod sa mga tagubilin, ang operasyon ay dapat na matatag, walang block, mas hindi maaaring lumitaw ang hindi pantay na bilis ng pagpapatakbo ng kurtina plate, ang kurtina plate akumulasyon o kahit na derailment phenomenon.

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