... .good fastness 4.circular,trilobal bright and trigonal bright Since 2007, we began to manufacturing polyester yarn for textile industry, mainly production ... is more than 70,000 tones annual,at the present ,we have 48 sets of spinning equipment for polyester yarn poy ... /36f, 150d/48f, 300d/96f, 450d/192f, 600d/192f, meanwhile,we are also manufacturing special item as the different customer requirements ...