1.5D 39mm VSF Viscose staple fiber for artificial cotton short staple spinning
Platinum sulfide classification and industrial grade NA2S standard chemical formula sodium sulfide
PVC resin k67 k55/k65/k68/k70, Chinese PVC/recycled pvc resin
Platinum Sulfide Classification NA2S Sodium Sulfide 60 min Content Flake Chemicals
Baijin Industrial sodium silicate solution/transparent liquid/ratio 3.2-3.4
