Ngwa ngwaahịa
Site na mmepụta nke polymer molecular dị elu-polyvinyl chloride na polyethylene, a na-eji ihe nkiri plastik eme ihe n'ọtụtụ ebe n'ọrụ ugbo.Japan na mba Europe na America nwere ihe ịga nke ọma n'itinye ihe nkiri griin haus na-ekpuchi ebe ndị na-ekpo ọkụ na mmalite 1950, wee kpuchie obere ụlọ na griin haus na nsonaazụ dị mma.Obodo m webatara ihe nkiri ugbo polyvinyl chloride n'oge mgbụsị akwụkwọ nke 1955. A na-eji ya eme ihe na obere obere ụlọ iji kpuchie akwụkwọ nri na Beijing, nke nwetara mmetụta nke ntozu oke na mmụba mkpụrụ.Ụlọ griin ha na mbụ bụ ngwá ọrụ pụrụ iche maka mmepụta ihe oriri, na mmepe nke mmepụta ihe, ngwa nke griin ha na-aghọwanyewanye.Ka ọ dị ugbu a, a na-eji griin haus eme ihe maka ịkụ ihe ọkụkụ na-egbutu okooko osisi;a na-eji mmepụta nke osisi ndị na-amị mkpụrụ eme ihe maka ịkụ mkpụrụ vaịn, strawberries, watermelons, melons, peach, na oroma;a na-eji ihe ọkụkụ eme ihe maka ịkụ mkpụrụ osisi na osisi ịchọ mma;a na-eji ụlọ ọrụ ozuzu maka sericulture na ịzụlite.Ọkụkọ, ehi, ezi, azụ na ighe, wdg.
