OVERVIEW Jolly Engineering Service Inc. is located Nantong City, Jiangsu which is center of oilfield tools and equipment manufacturing in China. We have a regional office in Edmonton, Alberta Canada for North American.We provide best sourcing service for global oilfield equipment related trading companies, drilling contractors and supply stores. SCOPESOur service start from product analysis, selection of suitable suppliers, exchange of inquiries, supporting negotiations and technical exchange, quality control before the goods are dispatched, logistic and shipping, support in after sales service