Complex sentence: From the 1970s until the 1990s, the Jiangsu province of China produced fine silk taffetas: these were less flexible than those from Indian mills, however, which continue to dominate production.
Split into simpler sentences: From the 1970s until the 1990s, the Jiangsu province of China produced some fine silk taffetas. These fabrics were less flexible than those from Indian mills, which now dominate production.