A single-frame greenhouse usually consists of a single structure with a steel frame as the supporting structure. The covering material is generally plastic film, and sometimes materials such as thermal blankets are used to improve the thermal insulation performance.
A single-arch greenhouse is a simple and practical protected cultivation facility, typically constructed using materials like hot-dip galvanized steel pipes, covered with plastic film, and built in an arched shape. Its primary purpose is to allow vegetables and fruits to be cultivated "earlier in spring and later in autumn," achieving off-season market availability and higher profits.
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