Changqingteng Hid ndi opanga ndi opereka a nsalu ya polyethylene ku China. Fakitale yathu ili ndi boma - of - ukadaulo waluso ndi makina ojambula kuti atsimikizire kupanga kwapamwamba - nsalu yabwino komanso yolimba. Timakhala ndi mwayi kupereka mayankho okhazikika pamapulogalamu osiyanasiyana, kuphatikizapo kupeza, ulimi, zomanga, ndi zina zambiri. Monga othandizira odalid wodalirika komanso ochokera kunja, timapereka nsalu zambiri za polyethylene yomwe imapereka zofunika pa zosowa zosiyanasiyana za makasitomala athu padziko lonse lapansi. Gulu lathu la akatswiri la akatswiri a akatswiri amagwiritsa ntchito njira zapamwamba zopangira ndi zida zapamwamba kuti apange zitsulo, zopepuka, komanso nsalu yosiyanasiyana. Ndife odzipereka kupereka malonda ndi ntchito zabwino kwa makasitomala athu ndikuonetsetsa kuti akhutire kwambiri. Ndi chidwi chosasunthika pazabwino, zatsopano komanso zokhazikika, changqingteng quarse firfield and ch. Lumikizanani nafe kudziwa zambiri za zinthu zathu ndi ntchito zathu.