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Innovation in green manufacturing processes

Industry shifts to ​​aqueous quenching​​ (replacing oil) and ​​cyanide-free electroplating​​ (coverage to reach ​​85%​​). Donghua’s recycled polyester material, developed with

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Improvements in Chain Production Technology

1. Raw Material Modification​​ ​​(1) Annealing Process Upgrade​​ Phasing out backward coal-fired furnaces, adopting ​​bell-type annealing furnaces​​ with nitrogen (or

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