LDPE - Low Density Polyethylene - a raw material of lower density than HDPE. LDPE Film is very elastic, flexible and stretchable. These product specification are perfect to make bags for heavy sharped-edged product like Garbage.

LLDPE - Linear Low Density Polyethylene - a raw material of lower density often mixed with HDPE or LDPE.
LLDPE has a lower melting point than HDPE. This yields lower welding temperatures. Mixing it with LDPE results in stronger welds and penetration resistance.