GB/T 12459  弯头 DN 250-Ⅱ-690ES

DN 250-Ⅱ-6 90ES

SW 1 1/2"-150 RF

SW80-150 RF

SW 40-150 RF

SO 300-150 RF

PL 150(B)-16 RF40WN800-1.0124f/ S=8a δ10-0RF bh2Tmp

WN50(B)-16 RF1001S=6-1.0/ S=9 FFJ28 NB=11210RF0

WN 25(B)-16 RF S=340SRF S=4F00.6 M TSpa δ10-0RF bh2Tmp7

2 CFM 2400-0.