法兰 PL 80-10 FF D=185 K rf

PL80-10FF D=185 K rf

PL150(B)-25 RF RF16 RF K=

PL150-10RF(B)F16rf)-S1SC40S300 RF0 S=5.610 s=8=390F S

bi 2300-fm0-1.069 W

PL 80-150 RF00020d=00sF CmS0CH3

NB/T47023 rf500-1.0 RF1RF S

LWN40-600 RF B=38

WN20-25RFb= b= c=3

WN 300-150 RF S=1=25508=S

WN