GB/T 12459  弯头 DN 100-Sch80S45E3D1-25040

DN 100-Sch80S 45E3D1-25040

Wn50(B)-25RFfm0- bl40

LWN 40-900 RJ B=590(-1F Sch40S)-5d=

HG/T20615-2009 WN600-150RFch80S=l65/

SO 15(B)-10 RF S=600 RFf�6004/2/11-3 TRs01

WN500-25M δ=10

LWN50-1500 RJ B=50-300/m3/

2 CT 1400-1.6 δ1

BL100-16 RF80samp0F001