NB/T 47065.1  支座 A 1990

2 A1990

PJ/SE 300(B)-10 FF Sch80

BL500-16RFh600.46J@PLm s

PL 00(B)-16 M

DN 40×40×900-Sch30 TRTR S t HRFRFch80ch40RF b=

PL80-16FF6721ch ScA�7

WN50-300RF,-4.0/D+Sc/A

PL 100(A)-6 RF150 R

DN50-PN25 BL RF â…

PL 600(B)-16RF0-1.B)-10 RF1-1RF b=4RF.6F