Yancheng Hengsheng Insulation Co.,Ltd was founded in 1997 and is the specialized factory in manufacturing insulation materials: insulation sleeve--silicone fiberglass sleeving, fire sleeve ,acrylic fiberglass sleeving;  laminated sheet:epoxy phenolic glass cloth laminated sheet,
phenolic paper laminated sheetphenolic cotton cloth laminated sheet,
  G10/FR4 Glass Epoxy Sheet ;  insulation paper:6630 DMD (Class B) Flexible Insulation Materials,
6641 DMD (Class F) Polyester Film.