HG/T 20592  法兰 PL 300(B)-25 RF 26h40FF6Scampampamp

PL300(B)-25 RF 26h40FF6Scampampamp

PL 65(B)-16 RF n=4 b=3

WN40(B)-100 FF S=3F Sch40

WN 3"-300 RF Sch10S

WN 50(B)-25 FMrf sch46M@RF RF1651ch80F D=21SRFSCH0×300-5 TRam@4RJ RFSCH40S rf@40@S

PL 65(B)-16 RF

SO32(B)-100RF0 RF B=6p

WN 6"-150 RF S