QJ41M-16-DN15,QJ41M-16-DN20,QJ41M-16-DN25,QJ41M-16-DN32,QJ41M-16-DN40,不锈钢高温球阀
密封圈


(M/F)高强度耐磨碳结石墨300℃(PPN)对莅聚苯、温度350℃




3


球


不锈钢

01/21 22:00