MG30G1.2/2，MK6G1.2/2，MK8G1.2/2，MK10G1.2/2，单向节流阀 MG30G1.2/2，MK6G1.2/2，MK8G1.2/2，MK10G1.2/2 无锡市昌林自动化科技有限公司