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MinHe Foundry
Global supplier of premium ductile iron castings, specializing in pipe fittings, flanges and valves. Trusted by industrial and municipal projects across 40+ countries, backed by ISO9001 certification and two decades of casting excellence.
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Steel annealing process showing heating stage with torch and glowing metal surface

What Is Annealing? A Key Heat Treatment Process for Metals

Surface treatment1 November 2025

Annealing is a heat treatment that softens metal, relieves internal stress, and improves ductility by controlled heating and slow cooling—essential…

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Baida Industrial Park,Dalingshang Town,Dongguan City Guangdong, China.523819

tel 769-81519985
email sales@hmminghe.com

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