HG/T 20592  法兰 PL 500-6 RF6 k=154

PL 500(A)-6 RF6 k=154

SO 20-300 RF

pl50-16rf-20592-316l/

BL 450(B)-10 RF

1 FM 700-0.6 δs=5

SO 500(A)-16 RF

wn600-150 rf s=5

SO 500(B)-16 RF

bi1600 RF2.50.61256ch353/ua

hg/t20592 bl100-100fm0Styunâ-r4016 FF6.4R/4/ n= 00380S.5-5 Sch600s=5ampampampam