HG/T 20592  法兰 SO 300(B)-25 RF70

SO 300(B)-25RF70

bl100-16rf c6rf0�F5 RJ0 RRF2F/-15@R

WN 40-300 RF SF

WN 2 "-300 RF Sch40S

PL150-10RF(A)/45 hg/-1

WN20-150 RF Sch40sRF0/1WN0 RF300-4.0F40

so 80-16 RF0c00 RFp(BFRJF Sch@RF@4300 RF�

WN 32-300 T Sch40S-1F10 RF00-4.f RF Sch80)F@4