34R8X-R1/2-L,34R8X-R3/4-L,34R8F-R1/4-L,34R8F-R3/8-L,34R8F-R 34R8X-R1/2-L,34R8X-R3/4-L,34R8F-R1/4-L,34R8F-R3/8- 无锡市昌林自动化科技有限公司