NIS 114:1979-尼日利亚金属导电体材料电阻率的测定
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NIS 114:1979 Pages: 11 Price B ICS 29.120.10
Determination of resistivity of metal electrical conductor materials.
NIS 114:1979-SONCAP认证-尼日利亚金属导电体材料电阻率的测定
Determination of resistivity of metal electrical conductor materials.
NIS 114:1979-SONCAP认证-尼日利亚金属导电体材料电阻率的测定
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