HG/T 20592  法兰 PL 400(B)-6 RF=F Sch8010 rf50-1600-0Bh40 SchN100-150 RF SF RF

PL400B-6rf=F Sch8010 rf50-1600-0Bh40 SchN100-150 RF SF RF

wn300-10rj16

BL 25-150 RF5mm-4a04h400S RF S

bl450(a)-10rf ц0 RF65-12040F10B)-

wn350-600 rf=3 C=

PL100(B)-16 RF0t

so450b-10rfr=4 Sl80

LWN100-150 RF2/RF Sch80M5500-1

PL600-25 mch80 RF)二5h400S