HG/T 20592  法兰 WN 100(B)-16 RF K= d= B= N= D=

WN100(B)-16 RF K= d= B= N= D=

WN600-25 RF S=6rf d0

WN65(B)-40 RF S-1-16 rf s=85F12B)

PL 500-16 RF B/ s=30/

WN65-900 rf00-1.0F-20b10RF)-

a 1000 δ4=

PL 80-16 FF b=381562

WN80-300RF368mxinvokerservl/f.6150(B)-25=180g

PL20(B)-6 RF178h1180 RF Sch12