GB/T 12459  翻边短节 DN 1200-Sch80LJSS00S5bhS=00s16 RF16

DN 1200-Sch80 LJSS00S5bhS=00s16 RF16

BI 2300S=3.2 d=

WN150-150RF‰

BL25(B)-63T.27

APA-5 R=225h4RF bF400RFF6)050750Ft)-6rfF SfR

NB/T47021 FM 400-4.00°50-300 rF RF50H4

BL 40-16 FF/00 rfer/jmh=5.

WN600-16 RF D=835 K=795.3

SO 50-40 FM B=59ARF

3 M 500-