GB/T 12459  等径三通 DN 500-Ⅱ-6TSff b=3 d=/0a ฮด=52H=

DN 500-Ⅱ-6 TSff b=3 d=/0a ฮด=52H=

WN80-300 RF S=10 RF IRF Ⅱ S= S=5 RF Ⅱ.5mp

WN 400(B)-150 RFпҝҪпҝҪ0ГҜпҝҪRF

bl20-160rfm k=140 b=

WN 80(B)-16 RF S=6.3/

BL 50-40 FMg08CH40 H=e5-16 rf/40s91/RFW5R-0

bl200(B)-10Mh40@L.5=3 A0 RF 16r5

WN