Kusonkhanitsa, kuyesa, ndi kuwongolera mwatsatanetsatane mwala wamtengo wapatali wa zida za optical waveguide positioning device kumafuna kulondola, kuleza mtima, ndi chidwi chatsatanetsatane.Nawa masitepe omwe mungatsatire kuti musonkhe, kuyesa, ndikuwongolera mbale yanu ya granite.1. Sonkhanitsani ...
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