1.high quality and the competitive price 2.from 1/2' to 72' 3.T/T,L/C 4.ISO 9001,SGS,BV,etc ... . STANDARDS ANSI, ISO, JIS, DIN, BS, GB, SH, HG, QOST, ETC. 5. CE and certification: ISO9001:2000, API, BV, SGS, LOIYD 6. Applications ... . 7.Quality: best 8. The third party inspection: BV, SGS, LOIYD, TUV, and other party alloyed by clients. 9. Remark: Also can ...