wet sprinklers system | Identifying components inspection and testing procedures

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wet sprinklers system :
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Пікірлер: 4

  • @asoteico9528
    @asoteico95286 ай бұрын

    Great! Thanks!

  • @ashrafhussein4771
    @ashrafhussein47714 жыл бұрын

    Why we installed valve before wet alarm check valve, in my opinion it will be better if we installed the valve after the check valve not before???

  • @deard4676

    @deard4676

    5 ай бұрын

    before is valve is ok

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