HG/T 20592  法兰盖 BL 15-16 RFF■�RF@443RF@AFF@PFMFM@404/01B2600RF@F

BL15-16 RFF■�RF@443RF@AFF@PFMFM@404/01B2600RF@F

BL 50-900 RJ

BL25-100MF1

SO 600(B)-10 RF

PL 80(B)-10 RF

WN 250-25 m

pl15-40rjm

pl500-40rjB-16

PL 50(B)-10 RF

PL00-10RF1F0Srfsch0b)-4M-150 RF40F rfrf10300-f1r836RF1F020/F SRFfsch4ff).255f)-18fn150-15