1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town Changqing South Road, Changsheng Community, Chang'an Town, Dongguan City, Guangdong Province ITC Changan Vanke Center Office Building
Oil Well Casing And Tubing Oil And Gas,4-1/2 Casing Tubular Media Fox   standardastmenjisgbastm a106 astm a210  astm a53      etcen 10216-2-2002en 10217-2-2005en 10216-1-2002etcjis g3454-2005jis g3467-1988jis g3456-2004 etcgb 6479-2000gb3087-1999gb 5310-1995etc  materialcarbon steel grade:astma179,a192,a178 gr.c,a210 a1,astm a210 c,din 17175 st35.8,astm ...