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we are now supplying seamless steel tubes ,pls talk to me if any enquiry.
The company has advanced production equipment, perfect testing equipment, (metallurgical & mechanical test, NDT testing, chemical analysis) we have passed the ISO9001-2000 quality certification. We are strictly in accordance with quality system requirements and providing high-quality products. Our products are: cold-drawn, Precision rolling, seamless carbon alloy structural seamless steel pipe, seamless steel tube , products are widely used in motorcycle, automobile, diesel engine, machinery, tools, chemicals, textile machinery, shipbuilding, electric power and other fields, The company has been in the industry for produceing coal mining machinery parts, drill pipes. Products are mainly exported to the United States for all these mining Machinery Manufacturing Corporation. Material American Standard 4130, the Chinese standard 30crmo. Specifications of three: 1. Pipe: outside diameter φ 22.252 bore φ 12.06. Hexagonal tube: B28.58 * B20.75 3. Hexagonal tube: B22.22 * B16 drill pipe finished products: heat treatment, HRC 38 ~ 41, or HRC 40 ~ 44, two kinds of choice for users. Drill finished: 45 ° C to chamfer at both ends, the surface can be made according to user requirements, we can spray anti-rust paint. |
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| Company : |
CHANGSHU KEWEI ALLOTYPE STEEL TUBE CO., LTD. |
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Contact us |
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China |
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