GB/T 12459  弯头 DN 1500-2090EL10-5CH40f50

DN 1500-20 90EL10-5CH40f50

BL 125-63 RFscSS10rf/TFJ S801000/C=125 rf d=1020R6.40-10FF216

SO15-10GjAF0PL100(B)M0(A)-1/0R

WN50(B)-16 RF6 RF6.0/Sch

DN 20-Ⅱ-4 90ES

PL200-10RF

3 FM 500-2.5FFF.RJ s0RJ

SO40(B)-40RF 4件0=3/u-10RF4 RFS0-4.0 R01 H=4

WN1