GB/T 12459  弯头 DN 40-1590ES0rf0 RF48) RFF4

DN 40-15 90ES0rf0 RF48) RFF4

WN 1"-150 RF Sch80

3FM600-1.30SRFRFFrfF05/ҖўвҖҷШ

WN 1 1/2"-150 RF Sch10S

WN15-150RF sch40s10rf s=1

WN 1/2"-300 LFM Sch40S

BL 8"-150 RF

pl600-10rf(b/F S=3.1 H1=80520=11.ht

法兰盖 BL 25-16 RF

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