求翻译：本图仅为施工指导图，钢结构加工及施工时应由专业的钢结构公司出具钢结构施工详图设计时尺寸定位应结合SG-0721及建施相关图纸确定。是什么意思？

This chart is only to guide the construction plans, steel processing and steel construction company issued by the professional design size steel construction details should be combined with SG-0721 positioning and building facilities to determine the relevant drawings.

This figure is only a guide map construction, steel fabrication and construction should be performed by a professional steel construction company design, steel structure construction detail drawings SG - 0721 size positioning should be combined with related drawings and building facilities.

This chart only is the construction instruction chart, when the steel structure processing and the construction should writes up when the steel structure detail of construction design by the specialized steel structure company the size localization be supposed to unify SG-0721 and to construct execu

This figure is only for construction guidance, steel structure and its construction should be issued by the professional steel structure company for detail design of steel structure design-time size position should be combined with SG-0721 and effects of building related drawings to determine.

正在翻译，请等待...