Unverified85% confidenceDecision RuleTime unknown
铝合金主杆(直径28-33mm)比玻纤杆更抗风且可调节高度，是天幕支撑首选；碳纤维杆更轻但价高易脆，玻纤杆便宜但易开裂不推荐做主杆
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85%
Confidence
Long-term
Relevance
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Unverified支撑杆材质：铝合金杆轻便抗弯（直径2.2cm以上稳固），碳素杆更轻但脆易断，铁杆最重最便宜适合固定营地不搬运84% similarUnverified展开后杆身较细，材质为碳纤维或铝合金，轻便易携带但不适合承受较大外力冲击或当作自拍杆以外的支撑工具使用84% similarUnverified撑杆材质与直径决定稳固性：铝合金杆直径≥28mm或采用航空铝加粗节适合大风，普通铁杆重且易生锈，玻璃纤维杆便宜但受力后易爆裂，多风环境优先带地钉+风绳的全套配置83% similarUnverified28mm直径碳素杆在大风天幕场景下抗弯刚度不如同直径铝合金杆可靠，大面积天幕或强风地区建议用更粗的铝杆或加风绳辅助83% similarUnverified拉杆看铝合金材质与档位设计，多节杆(3节以上)不如两节杆稳固；铝管越粗越抗弯，优选内置一体式铝杆而非外露螺丝固定款，后者易松动83% similar
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