medium expansion foam extinguishing agent 中倍数泡沫灭火剂

medium-expansion foam-generating equipment 中倍数泡沫发生装置

medium expansion foam branch pipe 中倍泡沫管枪 ; 中倍数泡沫管枪

medium expansion foam concentrate 中倍数泡沫液

medium-expansion foam 中倍数泡沫

medium expansion foam branchpipe 中倍泡沫管枪

medium-expansion air foam 中倍空气泡沫

medium m expansion foam 中倍数泡沫

medium m expansion foam branchpipe 中倍泡沫管枪