德国KNF防爆气泵/防爆气体采样泵 N87TTEEx 新款型号:N87TT.9E EX ¥12000.00 BAXIT防腐采样泵NMP830KPDC-B 直流24V微型隔膜气泵NMP830KNDC-B ¥1480.00 BAXIT微型隔膜气泵NMP830KPDC-B NMP830KVDC-B NMP830KTDC-B ¥1480.00 DC12/24V微型隔膜采样泵NMP830KNDC-B烟气分析真空抽气泵取样泵 ¥1480.00 BAXIT微型隔膜采样泵NMP830KVDC-B 12/24V真空取样泵NMP830KTDC-B ¥1480.00 BAXIT微型真空采样泵NMP830KTDC-B 12/24V隔膜抽气泵NMP830KNDC-B ¥1480.00