Cangzhou Yiheng Pipe Fittings CO.,LTD ,a perfessional Manufacturer of Butt-Welding Pipe Fittings ,main products is Elbow ,Tee ,Reducer ,Cap &Flanges According to A234 WPB ANSI B16.9&A105 ANSI B16.5 Standard. If you have any inquiry ,pls send me ,will send you our best price bases good quality...