Cov neeg yuav khoom 2 kab ntawm Mesh Siv Quenching Rauv,
tag nrho 3 lub thawv thauj khoom, kev txiav txim tom ntej tus neeg yuav khoom yuav lwm txoj kab nrog tempering thiab galvanizing.
Thov hu rau peb yog tias koj xav tau.
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