low power DC electro-magnetic relay的意思|示意

低功率直流电磁继电器 low porosity graphite rod密致青灰棒 low power DC electro-magnetic relay低功率直流电磁继电器 low power DC wet-type electromagnet for vhasve低功率直流湿式阀用电磁铁 ..

低功坦白流电磁继电器 low porosity graphite rod 致密石墨棒 low power DC electro-magnetic relay 低功坦白流电磁继电器 low power DC wet-type electromagnet for valve 低功坦白流湿式阀用电磁铁 ..