China dị elu-nkenkeoyi adọta tube, nke mbụ a na-ejikarị eme ihe na ụlọ ọrụ coal, ma ugbu a agbatịwo ya na ụlọ ọrụ mmepụta ihe, mmanụ, cylinder, cylinder na mkpanaka piston.Ịse àgwà, arụmọrụ, ọzọ na elu, mmepụta na-abawanye, na nkenke oyi mmasị technology na-aga n'ihu na-emeziwanye, teknụzụ na ngwaahịa nke elu nkenke oyi adọta atụmatụ na-aghọ ndị a ma ama, nnukwu na bara uru elu-nkenke oyi sere kpamkpam dochie omenala. mbelata ikike, ogbunigwe coal na China na-eji ihe osise tube na-eme otu ogidi hydraulic cylinder maka nlekọta coalface nke ụwa, nweta nsonaazụ dị mma.Mmanụ ụgbọala tank nke ogidi nke Britain, Germany na mba ndị ọzọ na n'okpuruala coal mi monomer, ihe niile mere nke oyi ịbịaru usoro.

Elu-nkenke oyi adọta tube na elu akụkụ ziri ezi na elu àgwà, fibrous anụ ahụ bụ obere, magburu onwe machining na n'ibu Njirimara nke oyi mmasị technology chọrọ n'ihu mmepe na mmelite.