????:DN80/3"-DN200/8"????:??????:DIN/ISO,ANSI/ASTM,BS,JIS????:EPDM,FPM????:PN10????:???,???(??,??)????????????:80?
????:DN80/3"-DN200/8"????:??????:DIN/ISO,ANSI/ASTM,BS,JIS????:EPDM,FPM????:PP-GF????:PN10????:???,???(??,??)????????????:80?