GB/T 12459  异径三通 DN 450×450×8-Sch40TR

DN 450×450×8-Sch40 TR

PL2400(B)-10 RF

WN 150(B)-40 RF Sc

WN350(B)-40FM S=

SO250(B)-16FF C

PL300B-10RF

DN 65×32-Sch10S RC

wn65)-16rf

BL200B-63MB)-2f5

LWN 600-150 RF B=578H=85fRF/650-0.6 δL20-30 SRF6 RFm5 b0S H33RF Sch160-150RFR=519 C=34 b=0-300 RF