HG/T 20592  法兰盖 BL 300-16 RFя├Б∙▓п▒Б■─Б∙▓п╥Б∙╗я▄Б∙

bl300-16RFя├Б∙▓п▒Б■─Б∙▓п╥Б∙╗я▄Б∙

BL 25-150 RF710rf-1 S=1280 /u

WN 2"-1500 SFM Sch1009.com/1�un–�

DN200-PN400 BL RF Ⅱ Sch80 RF-1.0/ B

PL500-2.5RF5RFb)-2f8-25.a0-10

SO 25-40 FM(a)28.56A BL10

SO25-10GWN5