Lamba wotumizira manyowa a nkhuku - Lamba wa manyowa a PVC wopingasa

Izi nthawi zambiri zimagwiritsa ntchito lamba wobiriwira wa 2-3MM wobiriwira wa PVC wokhala ndi m'lifupi mwake 500MM makamaka.Manyowa akachotsedwa mkati mwa khola la ziweto, amawaika pamalo enaake kenako amawatumiza ndi cholumikizira chopingasa kupita ku malo akutali ndi khola la ziweto zokonzeka kunyamulidwa ndi kunyamulidwa.

Lamba wochotsa manyowa a Annilte wa PVC, wopangidwa ndi A + zopangira, ali ndi mphamvu zolimba zolimba ndipo samathawa, ndipo amatha kufikira zaka 3-5 za moyo wautumiki mukugwiritsa ntchito kwenikweni, pomwe malamba ochokera kwa ogulitsa ena amatha pafupifupi chaka chimodzi chogwiritsidwa ntchito.