... temperature, can fully keep foods’ color, smell and taste, and the storage quality is much better thenmechanical cold ... 00Mpa.11.Material: Steel.12.Packaging details: Standard,if need wooden,will charge for cost.13:Delivery time: ... circumfluence welding, crystal, piezoelectricity, electronic porcelain, electronic copper tape, battery, electronic alloy material, etc. CertificationQuality Control & Test ...