... tube diameter: 6.6, 8.0, 10.0, 12.0mm Electric heating elelments for kitchenware equipment : Applicable to Western kitchen ... ISO9001:2000 Criteria.Technique parameter:1) Electric heating tube diameter: 6.6, 8.0, 10.0, 12.0mm2) Electric heating tube materials: SUS304, ... SUS321, SUS316L, SUS310S3) Electric heating power: to be ...