1) welding ribbon for big power solar panel:

   Copper base: electrician Park copper (TR line) rolling or T2 copper tape slitting
   Copper substrate resistivity: ρ ≤ 0.0172Ωmm2 / m

   Solder Composition: 62% Sn36% Pb2% Ag; 60% Sn40% Pb; 96.5% Sn3.5% Ag (Bi optional).
   The thickness of the tin layer: 10μm-40μm, sided uniform
   Thickness deviation: ≤ 0.008
   Width deviation: the rolled products ≤ 0.1mm; slitting Commodities ≤ 0.005mm.
   Elongation: the soft state ≥ 20%; semi-soft state ≥ 15%.
   Specifications: width 1.5mm-2.5mm; thickness 0.08mm-0.25mm.  (here is 1.5*0.2 mm)

   Packaging: cardboard, " I shape" wheel, box.

   Suitable for DIY solar cell and solar panel, also suitable for machine automatic welding middle without decapitation; crop for customers Length carton packaging.
 
2) welding ribbon for epoxy solar panel etc. mini solar panel:
   Copper base: electrician the Park copper (TR line) rolling
   Copper substrate resistivity: ρ ≤ 0.0172Ωmm2 / m

   Solder Composition: 98% Sn2% Ag (Bi optional)
   The thickness of the tin layer: 10μm-20μm, sided uniform.
   Thickness deviation: ≤ 0.008
   Width deviation: rolled products ≤ 0.1mm
   Elongation: ≥ 10%
   Specifications: width 0.6mm-1.2mm; thickness 0.08mm-0.13mm.
   Packaging: cardboard, " I shape" wheel, box.

3) Bus-bar for big power solar panel:

  Copper base: T2 copper tape slitting
  Copper substrate resistivity: ρ ≤ 0.0172Ωmm2 / m
  Solder Composition: 62% Sn36% Pb2% Ag; 60% Sn40% Pb; 96.5% Sn3.5% Ag (Bi optional).
  The thickness of the tin layer: 10μm-40μm, sided uniform
  Thickness deviation: ≤ 0.008
  Width deviation: ≤ 0.005mm.
  Elongation: the soft state ≥ 20%; semi-soft state ≥ 15%.
  Product specifications: width 4mm, 5 mm, 6mm; thickness 0.15mm-0.3mm.