GB/T 12459  异径三通 DN 650×650×40-Sch140TRpampampampnbsp

DN 650×650×40-Sch140 TRpampampampnbsp

PL300(B)-10RF

1 RF 550-1.6 δs=8

pl300-10 rf bL200-9RR(B

WN80(B)-16 RF

SO20-16 RF

PL 25(B)-10 RF

NB/T47023 FM600-1.0

WN 500(B)-10 RF S=8

2 c-fm 1000-1.6RRƒÂ¢Sch80F S=8CH800-4.0 ScC0sF RF.5 RJhRF0RF@RF@443RF