証明
標準:
GB/T19001-2016/ISO9001:2015
数:
56621Q00479ROS
発行日:
2021-02-02
有効期限:
2024-02-01
有効範囲:
Production of induction melting furnaces
が発行:
Qingdao Biaopu Authentication Company
標準:
Patent
数:
18445643
発行日:
2023-02-10
有効期限:
2024-02-10
有効範囲:
thyristor series-connected inverting medium frequency power supply equipment
が発行:
National Intellectual Property Right Bureau
標準:
Patent
数:
18687132
発行日:
2023-03-24
有効期限:
2024-03-24
有効範囲:
IGBT Module drive unit of Medium Frequency Power Supply
が発行:
National Intellectual Property Right Bureau
標準:
Patent
数:
18696935
発行日:
2023-03-24
有効期限:
2024-03-24
有効範囲:
a kind of current limiting inductor with higher safety
が発行:
National Intellectual Property Right Bureau
標準:
Patent
数:
16108815
発行日:
2023-03-24
有効期限:
2024-03-24
有効範囲:
IGBT Dual Cell Transistor Medium Frequency Power Supply Device
が発行:
National Intellectual Property Right Bureau
会社概要
Shandong Huarui Electric Furnace Co., Ltd.
連絡窓口: Mrslily