GB/T 12459  弯头 DN 200-SCh8090EL

DN200-SCh80-90EL

WN25-900RJ S

WN250-16RF SCH10SMR.0/F500-wnF4&am-40RF130s0-RF A=11

wn300(A)-10rf

AXA-2-10-F6u0507RF1.0/6b)s.000rj=1

WN 15(A)-63 M S=4-10 RF S=5.53/600RFSC=1/S=7m460m

so300b)-16rf25

WN 600-16 RF S=12/F SFS=60J650-1t205S

pl450B-10RFF