We are a professional manufacturer and exporter named QSC steel pipes in Chia.We mainly supply Petroleum
pipes, Oil casing pipes, Gas pipes, Line pipes, Structure pipes, water pipes and other steel tube products.and we
have passed the audit of API 5L/5CT ,ASTM A106/A53, ASTM A179/A192, ASTM A335/A213 DIN 2440/2441,
DIN1629/DIN2448, DIN17175.GB/T8162/8163, GB3087/5310.
Our company insist on "Honesty, Credit,