NB/T 47021  法兰 RF 500-2.5/40-105 h=65 δ1=17h=12-1

NB/T47021 RF 500-2.5/40-105 h=65 δ1=17h=12-1

WN80(B)-40RF-1.0

BL25-40 RFt.6n3CM8.4h40 R

WN50-160 M S=6F Bd6g d=66 f1=3 T0f(s4-150f)-25RF

SW 25-300 RF B200500-2.5/40-105 h=65 δ1=17h=12-1

47022 FM 1500-1.0/я▄я▒п╥Б┴╓я▄Б∙▓п╠Б�