Pamene mita workpieces zitsulo, kusankha zitsulo, kawirikawiri kuganizira waukulu ndi: katundu makina (mphamvu, toughness, etc.), processing ntchito ndi mtengo.Koma pazigawo zokhala ndi malata, kapangidwe kakusankhidwe ka zinthu, mtundu wa galvanizing wotentha uli ndi ...
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