脚手架钢管宜采用()钢管。A.φ45.3×3.6B.φ48.3×3.6C.φ48.3×3.4 脚手架钢管宜采用()钢管。A、φ45.3×3.6B、φ48.3×3.6C、φ48.3×3.4 发布时间:2025-09-16 09:10:37