1. Ƙa'idar yin gyare-gyaren allura Ƙara granular filastik ko foda a cikin hopper na injin allura, inda filastik ke zafi da narke don kula da yanayin gudana. Sa'an nan, a karkashin wani matsa lamba, an allura a cikin rufaffiyar mold. Bayan sanyaya da siffatawa, robobin da aka narke yana ƙarfafa i...
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