欢迎来电、来函索取详细产品目录及规格书！
Welcome to call us, email us for details and specifications book catalog!
规格书正常会有详细的层次说明：纲领、合同、建造、完工和修理说明。
Specifications are normally established at different levels of detail: Outline, Contract, Building, As Built and Repair Specifications.
如需更详细资料，请参考我们的规格书。
For more detail information, please refer to our specification sheet.
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