HG/T 20592  法兰 PJ/SE 50(B)-16 RF59 B=145 AA=159 S=7H=5807 B=705 L=19 b=2B1=4=86.19orum

PJ/SE 50(B)-16 RF59 B=145 AA=159 S=7H=5807 B=705 L=19 b=2B1=4=86.19orum

WN15(B)-16 RF S=5.

WN 50(B)-16 RF S=3

WN25(B)-16RF S=5sk=135 n=8412 D=80=30.0800(b)-10 rf

WN15(B)-150 RF

BL100-300 RF K=015-b=328Ss09 D=240 K=200 C=

PL 400(B)-16 RF

WN18"-1