PN08,PN10,PN12,PF20,PF30,PF40,PM20,PM30,PM40,PH20,PH30,PH40,耦合式接头 PN08,PN10,PN12,PF20,PF30,PF40,PM20,PM30,PM40,PH20, 无锡市昌林自动化科技有限公司