A new type of thermal insulation material has been developed. It can be used to cover sun-light greenhouse at night instead of straw-curtain.
研制了一种替代草帘的日光温室夜间外覆盖的新型保温材料。
The invention relates to a slab laser cladding compound alloy layer heater which comprises a furnace body, a rolling screen orbit and a thermal insulation rolling screen cover plate.
平板激光熔覆复合合金层面加热器，包括炉体、卷帘轨道、保温卷帘盖板；
The utility model relates to a thermal insulation kettle cork with automatic opening and closing, comprising a kettle cover, a kettle cork and an automatic opening and closing mechanism.
本实用新型涉及一种自动开关保温壶塞，它由壶盖、壶塞及自动开关机构组成。
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