BS12T-DN10,BS12T-DN15,BS12T-DN20,BS12T-DN25,BS12T-DN32,BS12T-DN40,BS12T-DN50,通用 BS12T-DN10,BS12T-DN15,BS12T-DN20,BS12T-DN25,BS12T- 无锡市昌林自动化科技有限公司