GB/T 12459  弯头 DN 150-Ⅱ-1290EL D=273

DN 150-Ⅱ-12 90EL D=273

DN 50-Sch80 90ES

LWN1-300RF10ุฐย�0e2/u0080/u0099

SO 1/2"-150 RF

hg=t20592-2009 pl125(a)-16rf

WN 25-300 RF SCH80SFcla10M0(B)606f-sc60 rfSc

WN 100(B)-63 RF S=7

1 M 500-1.6 δs=1

WN40-150RF ScH80DMM08 dM S=8 206/0

N