HAITIAN PIPE FITTINGS CO.,LTD,OF SHENGTIAN GROUP,CHINA PROFESSIONAL MANUFACTURE AND SELL HIGH QUALITY CARBON   STEEL ,ALLOY STEEL STAINLESS WHICH WIDELY USE IN MANY INDUSTRY FIELDS. . WE SUPPLY KINDS OF STANDARDS LIKE GB/T, JB, SH, HG, ANSI ,JIS, DIN AND SO ON. AT THE SAME TIME ...