GB/T 12459  弯头 DN 100-Ⅱ-690ELpl6 RF-15

DN 100-Ⅱ-6 90ELpl6 RF-15

WN50-16RF D=200 K=160 R=5 H1=8 H=50 AA=57

WN 5"-150 RF Sch40S

LWN 80-300 RF B=73

wn15-300 rf b=13.84

BL600A-16RF25Rf ANSI B16./60-

WN 600(B)-16 RF Sch80S

WN 40(A)-160 M S=6

HG/T20615 BL25-300M0M 10

PL 150(B)-10 RF RF s