HG/T 20592  法兰盖 BL 300(B)-16 RF’ย ะ50 RF

BL 300(B)-16 RF’ย ะ50 RF

PL15-16RF b=0/00S H=398PL25-16rs=6F0c2B-40RF

PL150(A)-16 RFRFF

PL32(b)-10 RF.9000-1.02.96 d7.6/681=46 2074 A=13380S)F-

WN 100(B)-16 RF3 b=3mpwd=&a

PL500(B)-2.5RFF0rf0-G5F-15f0-Go3n012m110

WN2(B)-160RJR

WN 80(B)-25 RF