... )we are the manufacture of the spun silk yarn in China.2)The main raw silk 20/ ... 22D,4A or 5A.3)silk yarn nature fibre,useful for the healthHangzhou shanglu Silk Co ... commercial chariot" brand white steam filature, silk and flax yarn, 18,000 tons annual output of white steam filature ... silk 38 thousand tons, 120,000 tons of flax yarn.2)The company has passed ISO14001: 2004 environmental management ...