Dị na a maara nke ọma ọdụ ụgbọ mmiri obodo, Ningbo, China, Ningbo Yuhe Construction (Digtech) Machinery Co., Ltd.ọpụrụiche na n'ichepụta na mbupụ magburu onwe mma ala na-etinye aka ngwaọrụ na ígwè track akụkụ dị kaelu ike fasteners bolt & aku, gwuo egwu, ihe mkpuchi hex, track bolt, akụkụ bolt, grader agụba bolt, mbepụ bolt, ahaziri bolt, pin eze ịwụ na mkpọchi, pin na njide, aka uwe na retainer, eze ịwụ na nkwụnye, track rollers;yana akụkụ ndị ọzọ na-akpụ akpụ, nkedo na nrụpụta ihe karịrị afọ iri abụọ.