Steel Pipe Coating Zinc Phosphate Primer

Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of steel pipe coating zinc phosphate primer in China, featured by quality products and low price. If you're going to wholesale durable steel pipe coating zinc phosphate primer made in China, welcome to get pricelist and free sample from our factory.

steel pipe coating zinc phosphate primer

seamless steel pipe coating zinc phosphate primer, ERW steel pipe coating zinc phosphate primer

Production procedure

1. Visual inspection, chemical composition and mechanical properties inspection are conducted when raw material in our factory.

2. uncoiling, flattening, shearing and butt welding, weld cleaning before welding

3. Forming

4. inside and outside burrs are removed by factory.

5. visual and dimension inspection

6. Hydrostatic test or NDE

7. chemical analysis and mechanical properties of sampling inspection

8. surface treatment sand blasting before painting zinc phosphate primer

9. painting zinc phosphate primer and measure painting thickness

10. According to standard, steel grade, size, no. , each pipe is marked on surface

11. packing in bundles or in loose accords to size

12. shipping

    
    

Product display of steel pipe coating zinc phosphate primer

Measuring of thickness of zinc phosphate primer

Usually, the coating is painted in two layer. The measuring is conducted after each layer painting.

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