The cast aluminum heater can attach closely with the heated material.
It can be up to needed temperature quickly,high thermal conductivity.
heating evenly,vibration and concussion resistant abrasion protection,
long life span,safe and credible.
No any pin hole.
The cast aluminum heating device is widely used.
It has many advantages which other heaters don't have.
For example:it can be made into many forms:square,circular,triangle,
circle plank,right angle,cone,tubular,HaF form,an anomalous forms etc.