Special motor works in low temperature for long time
Inverter motor for different products
S.S air guide and vane
Patent technology to average air flow
Reasonable  air speed and lower shrinkage loss
Lower power for same air flow
Arch air guid to average air flow
No pollution for food product & no fuzz
High density and litter friction
Producing line for insulation panel imported from Italy to supply top
rank insulated panel with stainless steel twin surface. Density is 38-40kg/m3
Access inside and access door equiped with heater
which heat the access door under the 0 Celsius degree 
Complete belt running inside chamber avoid cold loss
and contamination outside the enclosre
Plastic strip imported from Japan sticked on belt plate keep the belt best running.

more details in http://www.equipmentimes.com/20139/29/201309290925271740.html