The upper spray heat collecting cover does not require disassembly of the heat collecting cover. The fire sprinkler head heat collecting cover does not need to disassemble the sprinkler head and install the heat collecting plate.
DN200, add-on model without removing the nozzle DN300, add-on model without removing the nozzle, DN400, add-on model without removing the nozzle, DN200 DN300, no-remove nozzle no-remove nozzle
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Items weight estimation 0 g, subject to actual weight
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