横河涡街流量计DY025DY050DY80高精度读数的&plu***n;0.75%(液体)读数的&plu***n;1.0%(气体、蒸汽)流体温度范围高温型***高达450℃低温型***低-196℃DY015-EALSR4-0DDY025-EALSR4-0DDY040-EALSR4-0DDY050-EALSR4-0DDY080-EALSR4-0DDY100-EALSR4-0DDY150-EALSR4-0DDY015-DALSS4-0NDY025-EALSS4-0NDY040-EALSS4-0NDY050-EALSS4-0NDY080-EALSS4-0NDY100-EALSS4-0NDY150-EALSS4-0N)