法兰 BL 80-6 RF16 RF S=4 S=6F/s0 rf sch4020R

BL80-6 RF16 RF S=4 S=6F/s0 rf sch4020R

WN25(b)-16FM9f60(b)/2F0(b)-1/

PL150(A)-10FFB1=1hread0-

lwn25-150 rf sch40 h=198

HG/T20615 LWN25-150RFsch40s00-15=58f8s12001R40-90 S==52 BB=1

wn50(b)-600fm30RF0RFrf=3 aa=1/

BⅠ950h=290)-25rf-

WN150B-63RJ5b)-16rf