Nantong Jinniu Machinery Manufacture Co., Ltd is an oil machinery manufacturer in China. And we are grade 1supplier of China National Petroleum Corporation(CNPN) and China Petrochmical Corporation.The company has optained API Q1 Registration, ISO***1:***0 and ISO/TS ****1 certificates. The products have been granted with the right to use the Official Monogram of API Spec 7K and API Spec 8C. Our products concludes ZQ series Drill Power Tong, TQ series casing tong, various kinds of manual tongs, Elevators, Slips and Hydearlic power stations. You can find more detailed information in the attatchment.