树顶支架制造商质量保证体系惯例的英文

standard practice for treestand manufacturer quality assurance program

• 树顶:    the top end of a t ...
• 支架:    support; stand; tr ...
• 制造商:    manufacturer
• 质量:    mass
• 保证:    pledge; guarantee; ...
• 体系:    system; setup; hie ...
• 惯例:    convention; usual ...