The 13 5/8"-5000psi riser used on well head, the height will be designed as client's requirements. Top and bottom flanged. Meet Nace 0175, H2S Trim. Welded SS in all ring grooves.
Certs:
API 16A, Q1.
Our advantage:
C/w COC, material and test reports along with the cargo.
With bolts and nuts and gaskets.