NB/T 47021  法兰 RF 550-1.6 δs=10 δs=F= b= c=30 C=46 f1=40068 H=56

1 RF 550-1.6 δs=10 δs=F= b= c=30 C=46 f1=40068 H=56

RJ80(B)-10 RF00F0-=F0RFRJ1.000

BL600-300 RF Scpampam0r5RFB)60S-000100nv.

so100b)-10rf/100--1

A WN700-150 RF0a009c=36 nH40S00-1mp0SCH60S-000100nv.

WN 50(B)-25 RF S=3hampampmpampam0r5RFB)60S-000100n