Ojiji ike nke mmepụta calcium carbide buru ibu nke ukwuu, yabụ nke a ga-eweta ụfọdụ ihe ịma aka nye ọkọnọ ike China. Ebe ọ bụ na ọkụ coal na-emepụta ọkụ eletrik, ọ dị mkpa ka ọ na-eri ọtụtụ coal, yabụ ọkụ coal ga-emebi ikuku. Agbanyeghị, China emeela mgbanwe ụfọdụ na amụma kemgbe ọtụtụ afọ. China na-emelite usoro ụlọ ọrụ ya mgbe niile. Ugbu a, anyị nwere ike ịhụ na China ebubatala ọtụtụ mmanụ, a na-agbakwa ụlọ ọrụ mpaghara ume ka ha bubata mmanụ iji mee ka ngwaahịa ndị dị n'okpuru ala dịkwuo mma. Ya mere, n'afọ ndị na-adịbeghị anya, etinyerela ọtụtụ ndị na-emepụta usoro ethylene ọhụrụ na China, ikike mmepụta PVC ọhụrụ niile na China n'afọ ndị na-adịbeghị anya bụ ikike mmepụta nke usoro ethylene. Ike mmepụta nke usoro calcium carbide nke China akwụsịla nkwenye ọhụrụ. Ya mere, n'ọdịnihu dị nso, ọnụọgụ osisi ethylene na China ga-anọgide na-abawanye, usoro calcium carbide ga-anọgide na-ebelata. N'ọdịnihu, olu mbupụ nke usoro ethylene nke China ga-anọgide na-abawanye, ma jiri nwayọọ nwayọọ bụrụ onye na-ebupụ usoro ethylene PVC n'ụwa.
