1.4 1/16" 15,000# 103.2 mm 104,000 kpa Frac head. 2.For oil well head equipment parts 3.API/ ... ISO/Environment Certificated 4 1/16" 15,000# 103.2 mm 104,000 kpa Frac head for oil well equipment partsFrac ... are a API/ISO certified enterprice →Head office in Shanghai ,2 plants in Yancheng, Jiangsu →Over 200 employees For More ... better serve our customers 4 1/16" 15,000# 103.2 mm 104,000 kpa Frac head