Lay out plate, sheet steel or other heavy metal and mark bending and cutting lines on work piece using protractors, compasses and drawing instruments or templates.
铺设莱板，钢板或其他重金属，用量角器，圆规和绘图工具或模板在工件上标记弯曲和切割线。
'Reaching and bending down to pick up products also activates a variety of muscles,' says Mark Healy.
马克·希利说：“伸手和弯腰去拿商品也能使很多肌肉得到锻炼。”
'Reaching and bending down to pick up products also activates a variety of muscles,' says Mark Healy.
马克·希利说：“伸手和弯腰去拿商品也能使很多肌肉得到锻炼。”
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