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KEMA
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 Date
of acquisition : May, 1985 (initial date of acquisition)
Item
of acquisition: EHV OF Cables(275kV and 5 types),
 EHV
XLPE
Cables(400kV and 4 types)
Certification
institute: KEMA
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JET-PSE
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Date
of acquisition: April, 2003 (Initial date of acquisition)
Item
of acquisition: Composite resin insulated wire & cable
and
one item and 13 types
Certification
institute: JET
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UL
USA
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Date
of acquisition: November, 1974 (initial date of acquisition)
Item
of acquisition: Fixture wire and 13 other files and 15 items Certification
institute: UL USA
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Japanese
Ministry of
Trade T
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Date
of acquisition: April, 1998
Item
of acquisition: Composite resin insulated wire & cable
and
one item and 5 types
Certification
institute: Ministry of Trade, Japan
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South Africa SABS
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Date
of acquisition: September, 1999
Item
of acquisition: 3.8/6kV∼19/33kV XLPE cable
Certification
institute: SABS of South Africa
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Japanese
Ministry of
Trade JIS
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Date
of acquisition: May, 2000
Item
of acquisition: Cold rolling, stainless steel coil and sheet
Certification
institute : Ministry of Trade, Japan
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