... main products are: (1) PFA transparent tube, PFA insulation tube ,PFA heat shrink tube , PFAcoil pipe , PFA corrugated / bellows tube, PFA sheet , PFA film , PFA ... welding rod. (2) FEP/F46 transparent tube, FEP insulation tube, FEP heat shrink tube, FEP coil tube, FEP corrugated / bellows tube, FEP film, FEP rods. (3 ...