GB/T 22072-2018干式非晶合金铁心配电变压器技术参数和要求国家标准
英文:Specifications and technical requirements for dry-type amorphous alloy core distribution transformers GB/T 22072-2018...
英文:Specifications and technical requirements for dry-type amorphous alloy core distribution transformers GB/T 22072-2018...