Foundry mill certifications shall be available upon request by the owner or engineer for all materials specified herein for major components.
Foundry mill certifications shall be available upon request by the owner or engineer for all materials specified herein for major components.
对于本规格说明书中的主要部件所采用的所有材料，当业主或工程师提出需要时，应该能够提供铸造厂证书供业主或工程师查验。