Our products include the following grades according to API standards:
H40, J55, K55, N80-1, N80Q, L80-1, L80-9Cr, L80-13Cr, M65, C90, C95, T95, P110, Q125, etc. Line pipe products include grades B, X42, X52, X60, X65, X70, etc. Drill pipe products include grades E75，X95，G105 and S135
Products manufactured according to the standards formulated by the API. American Petroleum institute (API)
Tubing, Casting, line pipes and accessories such as pup Joints, x-over’s and couplings
High Quality, Good Appearance complete specifications. Standard: ISO 3183, API SPEC 5L, ASTM/A53/A106, GB/T9711, GB/T3091, GB/T13793, SY/T5037, GB/T8163
