HG/T 20592  法兰 PL 200(B)-10 FF b=3

pl200(B)-10ff b=3

SO 125-300 M

WN65(A)-16 RF S=аё°

SO 150-300 RF

PL80(A)-6 RF S=5.5

WN 350-40 M=38-4

bl100-300ff=3/f

2 C6-20=12- RFF20RF-1

BL80-16 RF

LWN20-150RF L=165M2Sch8Sch40Sh8015F126FRF STD6150RF B=7.926.0�����@4aSch40S00 RF��