GB/T 12459  弯头 DN 300-Ⅱ-490EL00c3/22.5/52-1pampampa

DN 300-Ⅱ-4 90EL00c3/22.5/52-1pampampa

pl200-25RF Sc2.t6TDamp

SO40(B)-16RF-6RFF/.-1.6081409 so 400(b)-1hM2.rf-1

DN 450×10-Sch100 RES=3TR00-0-14Р

BL500-25 RF S=18

b wn 900-300 rf b=88�0020FF

WN 150(B)-100 RFM S=.51080-62=0mrfM5c300

WN800(B)-10F