HG/T 20592  法兰 WN 40-16 RF S=3

WN40(a)-16rf S=3

WN400(B)-16 RF S=10

WN300-10RF S=8.1

B BL 40"-150 RF

SO 200(B)-16 RF

WN 40(B)-40 RF S=3.5

LWN 40-300 RF Sch80s

WN80(B)-16 RF

BL25-600M

DN900-PN10 PL RF Ⅱ1M3056 R9c2paFF74000000�ƒ�6ELH4001S@F4550-1h80S10 D1=1165 D2=11260F10