Yihua Bonar Yarns & Fabrics Co., Ltd - China. Joint venture between Bonar International, Sinopec and the Yihua Group, active in yarns, geotextiles, bulk bags and industrial fabrics. Polypropylene and polyethylene, slit and spun yarns for artificial grass surface manufacturing. Also, primary an - http://www.yhbonar.com/
Borio Fiore Srl - Italy. Manufacturer of polypropylene worsted yarns for underwear, sportswear, socks and accessories. Technical information and yarn specifications. English and Italian. - http://www.boriofiore.com/
Rifil Spa - Italy. Manufacturers of spun and multi-filament textured yarns for knitting and weaving, from regular staple and microfiber polypropylene. Technical information on PDF files. English and Italian. - http://www.rifil.it/