GB/T 9124.1  法兰 DN800-PN63 SO RF Ⅱ 05/60-16550-

DN800-PN63 SO RF Ⅱ05/60-16550-

PL150-25RF19RF B＝20/D=2109RF5

47023 fm500-2.5 ГЈЖ’Г

BL 18"-150 RF0 δH10-1.02h20 T

WN300-40RF8205005(R=ch80b

жі•е…°WN200-16RF+S=6

PL 50(B)-25 RF FF0s0@0(B)-25 R

PL 300(B)-16 FF B=329 b=5

DN40/PN