... 2, ASME B16.22. 3.Samples are available. 4.100% Leakage Test. Established in 1998, Ningbo Jiekelong Precision Manufacturing Co.,Ltd is ... Precision Manufacturing Co.,Ltd Established in 1998,was totally invested by Ningbo Jintian Copper(Group)Co.,Ltd,which one of "China's ... order in large quantities,free charge of mould fees.(3)Steady raw material supply:we own Jintian Copper Bar Company, which guarantees ...