NB/T 47065.1  支座 BⅠ 7246

bi 7246

BL 80-40 M

WN 18"-150 RF Sch8S

WN 80(B)-40 FM S=6

WN 1"-1500 RF

PL 80(B)-10 RF

SP-3977

2 A2579

BL80-150RF-6RFSh�29

BL 500-25 RFPL RF ⅡRF5@FSFS1@4�F1Ff@4j0RF0mpamnbsp5.4 RJ00pa101c@S/2@ R80f0R�00(b)300200F B=429@5@F16 RF438