JIS B2220  法兰 BL RF 5K 900A

BL RF 5K 900A

BL300-10 RF

SO 200(A)-16 RF

DN500-PN10 PL RF

DN600-PN10 PL RF

WN200(B)-16 RF S=7

WN 80(B)-40 RF Sch100

WN 200-300 M

so450-150 ff

WN 10-900 RF�F�5RFS"-900 RF Sch80php0 RFFSRF B15F00 LTam�� S=8F050 RF SM Sch80h400RFRF2@6F@F S rf