DESIGN AND MANUFACTURING STANDARDS
Design and Manufacturing according to API 6D BS 1868, ASME B 16.34, GB 12236, GB 12224
Face to face according to ASME B16.10, API 6D, GB 12221
End Dimension as per ASME B16.5, ASME B16.25, ASME B16.47, GB/T9113
Inspection and test as per ISO 5208, API 598, BS 6755, GB/T 26480, GB/T 13927, API 6D
