All steel ventilation plate se
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whole steel ventilation floor 4
Suitable for:general(whole steel floor,compound floor,calcium sulfate floor,the whole aluminum floor) Ventilation rate:45％
Suitable for:general(whole steel floor,compound floor,calcium sulfate floor,the whole aluminum floor)
Ventilation rate:45％
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公安局備案號(hào)：13062602000053號(hào)