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　　When Carbon Steel Oil Pipeline is out of the factory, it will be equipped with the material sheet provided by the carbon steel oil pipeline manufacturer, that is, the so-called quality certificate. The material sheet of carbon  steel oil pipeline proves that the carbon steel oil pipeline provided meets the standard requirements. So what's on a list of carbon steel oil pipeline?

　　1. Name of carbon steel oil pipeline manufacturer;

　　2. Name of customer buyer;

　　3. Contract number;

　　4. Q235 20 Inch Carbon Steel Oil Pipeline Implementation Standard;

　　5. Name and specification of carbon steel oil pipeline. When applicable, it should be noted that the type of carbon steel oil pipeline end is socket type.

　　6. Number and quality of carbon steel oil pipeline;

　　7. The number and brand of steel strip coil smelting furnace;

　　8. Various test results specified in the standard or supplemented by the contract;

　　9. Carbon Steel Oil Pipeline Shipping number;

　　10. Delivery record;

　　11. Imprint of Quality Inspection Department;

　　12. Other contents that the carbon steel oil pipeline manufacturer deems necessary to indicate.

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