GB/T 12459  异径三通 DN 200×200×125-Sch40STR

DN 200×200×125-Sch40S TR

LWN50-600RF0(B)-16RF0 RFF S=3

PL 300(A)-10 RF=8/ 9135300 RFRF406

DN150-Class150 WN FF Sch80S

A WN 42"-150 RF S=12.7 f=-1.5

wn200-100 rfTD兰PL65(B)-

wn100-300g02b.6B=7

DN 650×650×1100-Sch40 TR06018 RF S=400R1-16

DN20