Matatagpuan sa kilalang harbor city, Ningbo, China, Ningbo Yuhe Construction (Digtech) Machinery Co.,Ltd.dalubhasa sa pagmamanupaktura at pag-export ng napakahusay na kalidad ng ground engaging tool at steel track parts tulad ngmataas na lakas na mga fastener bolt at nut, bolt ng araro, hex bolt, track bolt, segment bolt, grader blade bolt, cutting edge bolt, na-customize na bolt, bucket tooth pin at lock, pin at retainer, manggas at retainer, bucket tooth at adaptor, track roller;pati na rin ang iba pang forging, casting at machining parts na higit sa 20 taon.