| 摘要 |
A greenhouse gutter assembly is illustrated wherein an extruded channel member has integral upper and lower sides projecting from the ends of a horizontal drainage member and an insulating bottom is spaced below the drainage bottom creating an air space extending below and across the drainage bottom. Means are also provided creating an insulating air space across the upper sides which facilitates attachment of the bow members of the roof as well as providing insulation for the greenhouse.
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