China elu ọsọ ụlọ mpempe akwụkwọ corrugated akpụ igwe

Nke a bụ China nnukwu ọsọ corrugated ụlọ mpempe akwụkwọ igwe, nke ọsọ nwere ike iru 30m kwa nkeji, na nwere elu precision.Electric ịkpụ na hydraulic ịkpụ dị.