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Varnishes used for electrical insulation - Part 4: Polyester-imide varnishes
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STANDARD published on 10.6.2009
Designation standards: GB/T 1981.4-2009
Publication date standards: 10.6.2009
SKU: NS-873625
Country: Chinese technical standard
Category: Technical standards GB
Latest update: 2026-09-10 (Number of items: 2 300 145)
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