GB/T 12459  弯头 DN 15-Sch14045EL�1=1582mfka5oj´16F

DN 15-Sch140 45EL�1=1582mfka5oj´16F

47201 RF700-1.04M-1=0G/B

PL80A-10RF s=2051/f/s=468B)-.0F1(B)-10RFF9k=120

47023 c- fm500-6.4RFS=3.0/64

5 CT 1600-1.020δ0

PL 80(B)-6 RF67-1346.506300.00-1.

WN50-300 RF SCH8050-2R=123 d=200(B)-25RFRF10

5LWN20-300R