HG/T 20592  法兰 PL 200-16 RF b=5 RF D=2960 B=2620 K

PL 200(A)-16 RF b=5 RF D=2960 B=2620 K

PL40(B)-6RF b=3 f1=30-1.

PL 20(B)-16 RF b=)-6RFJ Sch80S FF b=5 B=3

PL600(B)-25RF d=820 B1=724 K=875 D=955

so200-300 rf16 RF 180EL RF0f/@bl5 hstch8=12pamp RFF-150r595 B=411 C=36.3FRFWN

WN25A-600RF S=5.52/70-165s