求翻译：主要设备及大部分材料均假设采用国内生产，特殊设备需进口的，也应采用国内市场常见之品牌，可有质量及售后服务之保障。业主指定材料设备也应有此种考虑是什么意思？

Most of the major equipment and materials are assumed to use domestic production, special equipment to be imported, nor should the domestic market of common brands, may have the guarantee of quality and service. Owners of specified materials and equipment should also be considered such

Major equipment and most of the materials used are assuming that domestic production, and special equipment, and should also be used to import the common brand name domestic market, may have a quality guarantee and after sales services. Owners should also have designated material equipment such cons

The main equipment and the majority of material supposition uses the home production, the specific installation must import, also should use the domestic market common brand, may have the quality and the post-sale service safeguard.The owner assigns the material equipment also to be supposed to have

Main equipment and most of the material assumptions used domestic production and special equipment required to import, should apply in the domestic market of the common branding, quality and after-sales service guarantee. Owners specify the materials and equipment should also be such consideration

Most of the major equipment and materials are assumed to use domestic production, special equipment to be imported, nor should the domestic market of common brands, may have the guarantee of quality and service. Owners of specified materials and equipment should also be considered such