GB/T 12459  弯头 DN 1400-Ⅱ-1090E3DfN2RRF=

DN 1400-Ⅱ-10 90E3DfN2RRF=

BL40-300 m/M1700h160

WN150-150RF=6s-1(b)/u00c2/rf130-236F HG633-1991pamp

47021c-RF800-0.25Б52wn20-6am/BB=205

so 30b-10 M RF5=435oru/16/48 Rn1B)-

BI 500F b d=9001-300 RFCH8=p0Sh12d=1869f1.2 S=5

PL 150(B)- 25RFh N=28

bl100(