NBN15-30GM50-E0,NBN15-30GM50-E2,NJ4-12GM40-E2,NJ4-12GM-N-V1, NBN15-30GM50-E0,NBN15-30GM50-E2,NJ4-12GM40-E2,NJ4- 无锡市昌林自动化科技有限公司