NB/T 47023  法兰 M 900-1.6 δ0=14�¡2

3 M 900-1.6 δ0=14�¡2

1FM500-1.6/502RF╨�rf40659050 R

PJ/RJ450-10RFH10.FFFS�п╡п┌п╟п

PL 250(B)-6 RF.2h0RF-1000RF50RF

so80-25RFF-20b10RF)-6�Р�2=4RFF s=

SO 50(B)-25 RF b=3

TPB-5ampa

BL150()-6RF-B=591

47023 FM 1200-1.6/78-145

WN3