NB/T 47065.1  支座 A 763

4 A763

BⅡ818

LWN 1 1/2"-150 RF B=12.7

bl250b-150rf0C=198A 0CHr50(F-2.c400J-R9eS-RF=210.0

SP-1231

WN 4"-150 RF Sch3481

WN20-150RF250 RF

WN80(B)-16 RF46401

BⅡ 17484

BI 723779040 rf s=23h1/012F1amp000°f16 RL461Fp2@RF@-1.0h1135 S=6S00/8-1.