... and heating of refrigerator, air conditioner and cooler, heat preservation of rice cooker, electric blanket, electric cushion, electric massage chair, ... , electric shoes, bathtub, swimming pool, foot basin, heat preservation and freeze protection of pipeline and tank, heating of ... the same diameter. technical parameter:1 insulation material heat resistance: 250oC2 max use temperature: 250oC- 300oC3 ...