In 2004 XCF became the first manufacturer of PTFE sewing thread for filter bag use in China. Since then, we continuously challenge ourselves towards better answers to the questions: How to enable customers to obtain faster sewing efficiency, more convenient sewing experience, lower operating cost and higher service life? In 2013, the new generation of PTFE White Sewing Thread was developed with good features in higher strength、longer length per single cone and lower heat shrinkage. Besides white thread, a variety of colors are available for customers’ indoor or ourdoor use purpose.