产品等级

• Slotted cheese head screws - product grade a
  开槽圆柱头螺钉.产品等级a级
• Hexagon head screws - product grades a and b
  六角头螺钉.产品等级a和b级
• Hexagon head bolts - product grades a and b
  六角头螺栓.产品等级a和b级
• Plain washers , chamfered - normal series - product grade a
  倒角平垫圈.标准系列.产品等级a级
• Cross recessed pan head screws with collar - product grade a
  带卡套十字槽盘头螺钉.产品等级a
• Product grade for major ornamental plants - part 1 : cut flowers
  主要花卉产品等级第1部分:鲜切花
• Product grade for major ornamental plants - part 4 : flower seeds
  主要花卉产品等级第4部分:花卉种子
• Product grade for major ornamental plants - part 6 : flower bulbs
  主要花卉产品等级第6部分:花卉种球
• Product grade for major ornamental plants - part 5 : young plants
  主要花卉产品等级第5部分:花卉种苗
• Hexagon nuts - product grade c iso 4034 : 1999 ; german version en iso 4034 : 2000
  六角螺母.产品等级c