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ZL202022359658.5 Qualified Notice of Change of Patent Owner of a Copper Belt Guide Device (Transferred by Light Industry Institute) 2

ZL202022359658.5 Qualified Notice of Change of Patent Owner of a Copper Belt Guide Device (Transferred by Light Industry Institute)

A copper belt guide device patent holder change qualified notification 2

Qualified Notice of Change of Patent Owner of a Copper Strip Guide Device

Utility Model - A Copper-Aluminum-High-Strength Steel Wire

copper-aluminum composite strip production equipment and straightening rollers

Copper-aluminum composite sheet inspection tool

A method for preparing copper-aluminum composite transition connection material

Ultra-thin copper-coated copper-aluminum composite material and production method thereof

Tensile specimens and tensile joints for strength testing of composite metal parts

Copper-lead composite strip and preparation method thereof

A corrosion-resistant copper-aluminum composite plate and a corrosion-resistant copper-aluminum composite plate strip

A copper-aluminum composite transition plate

A coaxial cable

Aluminum-copper-lead composite plate for lead-acid battery and lead-acid battery - utility model patent

A bell-type annealing furnace

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