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英语翻译1) These bars are all sheared with a tolerance of +100 m

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英语翻译
1) These bars are all sheared with a tolerance of +100 mm - 100 mm.Thus
the maximum length we can supply would be 5750 mm in a 20ft container or
11700 mm in a 40ft container.
Because of the shearing operation at least 100 -200 mm of each end of the
bars are not in tolerance and must be cut off before you start to cut your
actual necessary lengths.This is because the shear knives tend to squeeze
the profile during the shearing operation.
2) The profiles supplied in long lengths have straightness tolerances of
1mm / m for mast rails and 1.5 mm/m for carriage bars.
They also have twist tolerances of m for mast rails and carriage bars.
These tolerances are guaranteed for the long lengths.
1)这些横木在剪切时都有正负100毫米的偏差.因而我们能提供的最大长度要么是用20英尺容器装,横木长为5750毫米,要么是用40英尺容器装,横木长11700毫米.由于剪切操作,在开始切割出实际需要的长度前,横木两端至少有100-200毫米不计入偏差,而且必须切除.这是因为在剪切操作中,切割刀很容易挤蹭到剖面.
2)我们供应的剖面在长度挺直度上有一定偏差,桅杆的偏差度是每米1毫米,而车用横木偏差则是每米1.5毫米.对船用桅杆或车用横木,也有每米的弯曲度偏差.
长度上保证这些偏差(在规定的范围内).