GB/T 12459  弯头 DN 80-Ⅱ-490ES618 RFcFF

wn500-300 rf b=474S=8-150

DN 80-Ⅱ-4 90ES618 RFcFF

pl25(b)-25RFS=30=1250-1.063RFF500(B=B)-100 RF HG/

wn40-300 rf sch.16

WN150(B)-16 RF150�╟п▒я┌б√10S16 RFFM 600-

47023 rf1100-1.6/70-1

wn40(b)-40ms=6/35.0/M0-0.6RFn38RF/fmSch80S RF Sch8

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