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长度单位部分：The name of the entity, the drawings length material thickness (is steel plate), inches, converted to MM after the size, actual size of the后面一段：Hello, the actual use of the steel material confirmed and you offer drawing size of some different size, because you offer is inches, and in our China are used in MM and not is just accord with you drawing inch size, so find the nearest size materials, hope you can understand and understand, the attachment is the size of the actual material form for your
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