I-DVT Spring ingumkhiqizi owasungulwa ngo-2006, etholakala edolobheni laseNingbo. Imboni yethu imboza ngaphezu kwamamitha-skwele ayi-1,000 kanye nabasebenzi abangama-50 nxazonke. Sisebenza ngokukhethekile ezingxenyeni zasentwasahlobo kanye nezigxivizo, ezifana ne-compression spring, i-torsion spring, izingxenye zezintambo, ukuthintana nebhethri njll, eNyakatho Melika, eYurophu, eNingizimu-mpumalanga ye-Aisa yizimakethe zethu eziyinhloko. Sithumele intwasahlobo yethu emazweni angaphezu kwama-20 kuze kube manje.