NB/T 47022  法兰 C-FM 1600-1.6/20δ1=6ht2=2092.h160S=600..300

2 CFM 1600-1.620δ1=6ht2=2092.h160S=600..300

BL 200-16 RF.4h.2mpampamff50 S300f s

THA24006rf s2B/ch40d=a19 s= undefined=2115�

PL65-16 RF

SO40-300 RF-135RaJS0-15050/RFh

PL 50(B)-16 RF fpa-1RFSch804/FF/.4

WN40(B)-600 RjFu70

PL 80(B)-16 RF-300 RF

BL