GB/T 12459  等径三通 DN 25-Sch60TS0Hh-4.@��datF8rf5090

DN 25-Sch60 TS0Hh-4.@��datF8rf5090

WN200-150RFS=8500 RFS=4.55 RF Sch12.5 RJ-R��

法兰WN250-150 RF SCH40S

a1300δs

SO24"-300 RF0 RFF@44RFB)-25 RFc@R1ammpfR

SO 80-150 RF

JSO 250×300(B)-16 M

lwn250-100 rj/Sch5r

SWn15-300RF00sho42h

3 M 4