国家标准_第556页 - 在线标准查询

GB 7287.9-1987 红外辐射加热器全法向发射率测量方法

GB 7287.9-1987.Measuriog method for norm al total emittance of infrared beater.2...

GB 7287.10-1987.Measuring method for normal spectral emittence of i nfrared heat...

GB 7287.11-1987.Test method for lifetime of infrared heater.GB 7287.11适用于在额定电压下其...

GB 7287.12-1987.Test method for vibratlon of Infrared heater.GB 7287.12适用于在运输中将会...

GB 4522-1984.Shuttle bobbins for household sew iog machines.GB 4522适用于JA、JB型缝纫机的...

GB 4526-1984.Thread take- up cams for household sewing machines.GB 4526适用于JA型缝纫机...

GB 4527-1984.Thread take-up levercomplete for household sew ing machines.GB 4527...

GB 4528-1984.Roller complete for household sewing machines.GB 4528适用于JA、JB型縫纫机的滚...

GB 4536-1984.Hemmer feet for household sew ing machines.GB 4536适用于JA、JB型缝纫机的卷边压脚...

GB 4538-1984.Presser bars for household sewing machines.GB 4538适用于JA、JB型缝纫机的压紧杆。...

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