意大利朱丽安尼燃气稳压阀FG1B40燃气减压阀FGDR40FSDR15/CE(1/2")FSDR20/CE(3/4")FSDR25/CE(1")FSDR40/CE(11/2")FSDR50/40/CE(2")FSDR50/CE(2")FSDR65/CE(DN65)FSDR80/CE(DN80)STR65D/CE(DN65)5212STR80D/CE(DN80)STR100D/CE(DN100)***大入口压力1barFS1B15(1/2")FS1B20(3/4")FS1B25(1")698FS1B32(11/4")FS1B40(11/2")FS1***/40(2")FS1***(2")FS1B65（DN65)FS1B80(DN80)ST1B65(DN65)ST1B80(DN80)6382ST1B100(DN100))