24R8-R1/4-L,24R8-R3/8-L,24R8-R1/2-L,24R8-R3/4-L,34R8X-R1/4-L,34R8X-R3/8-L,4通锁定式 24R8-R1/4-L,24R8-R3/8-L,24R8-R1/2-L,24R8-R3/4-L,34 无锡市昌林自动化科技有限公司