GB/T 9124.1  法兰 DN450-PN40 BL FF Ⅱ mpamp

DN450-PN40 BL FF Ⅱmpamp

WN500-150 RF S=10

WN125-150RF A=133

SO 200-10 RF=pawsch40s0F0-4´0=1

WN250-300 RF B=2410RF0h400940R6

JWN 300×400-150 RF S=10-25 FM0/

PL350-10fF1015 6

DN 350-Ⅱ-10 CRS

WN 500(B)-63 M Srf=1

wn150-600 rf hg/ w=1480 rf1240j0r