支座 A 182M

ASTM A182M

20615 WN450-300 RF

LWN100-150RF SCH40S H=304 B=72.5

HG/T20592-2009BL200-16RF-300 S

WN 32(A)-16 RF S=2.8

NB/T47023 FM 2600-1.0

PL150-16 RF b=3 B=135

so25(b)-600RF50A

3 fm 1200-1.6O100

HB/T20592-2009 WN150(B)-25M

wn100A-25RF1.L25

PL 50(B)-1