Oriri ike nke mmepụta calcium carbide dị oke ibu, yabụ nke a ga-ebute ụfọdụ ihe ịma aka na ọkụ ọkụ China.Ebe ọ bụ na a na-emepụta ọkụ eletrik site na coal na-ere ọkụ, ọ dị mkpa ka ọ na-eri ọtụtụ coal, n'ihi ya, ọkụ ọkụ ga-emetọ ikuku.Otú ọ dị, China emewo mgbanwe ụfọdụ na atumatu kemgbe ọtụtụ afọ.China na-emelite yinye ụlọ ọrụ ya mgbe niile.Ugbu a, anyị nwere ike ịhụ na China ebubatala ọtụtụ mmanụ, a na-agbakwa ụlọ ọrụ obodo ume ibubata mmanụ iji nụchaa ngwaahịa ndị dị n'okpuru.Ya mere, n'ime afọ ndị na-adịbeghị anya, ọtụtụ ndị na-emepụta usoro ethylene ọhụrụ agbakwunyere na China, na ikike mmepụta PVC ọhụrụ na China n'afọ ndị na-adịbeghị anya bụ ikike mmepụta nke usoro ethylene.Ike mmepụta nke usoro calcium carbide nke China akwụsịla nkwado ọhụrụ.Ya mere, n'ọdịnihu dị nso, ọnụ ọgụgụ nke ethylene osisi na China ga-anọgide na-abawanye na calcium carbide usoro ga-anọgide na-ebelata.N'ọdịnihu, olu nke ethylene na-ebupụ na China ga-anọgide na-abawanye, ma jiri nwayọọ nwayọọ ghọọ onye na-ebupụ ụwa nke ethylene usoro PVC.
