We, Rizhao Herong Metal Products Co., Ltd, have been specialized in producing carbon steel and stainless steel flange since 2000. Our scale is not in the top list in China but in these 15 years, we keep one and only focus on flange production. Our main products are under standards DIN, EN1092-1, ANSI, AS2129, JIS, BS etc. We have been approved by TUV, PED and ISO9001 test. With good quality, our flange occupies more than 30% market in Europe.