主营产品：干式机芯15mm,,干式机芯20mm,,干式机芯25mm,,干式机芯40mm,,干式机芯50mm,,湿式机芯15mm,,湿式机芯20mm,,湿式机芯25mm,,湿式机芯40mm,,湿式机芯50mm,,干式(远传）机芯15mm,,干式(远传）机芯20mm,,