GB/T 29465  法兰 RF 1750-1.6/20

5 RF 1750-1.620

PL 300(B)-10 RF2n=6 L=15ch14.54-195mF00-mp4s

WN 80(B)-100 FM S=4

BL 50B-10RF4RF0RJ

PL 250-25 FFFM.b81.6-10RF F6 RF.1=1/ch80=2

JWN 40×80-150 RF Sch40S rf

WN600-10RF�²أ¢�

bii 13001006ampampampampampam

SO15-150RF.580so16

3 M 1200