| Grade:J55/N80-1Specification(mm):114.3~168.8(mm) 4-1/2~6-5/8(inch)Standard:API SPEC 5CTApplication:Casing pipe for oil field industryWe are oil casing cleaning truck manufacturer from China,please view them and select the most helpful info for you. Besides, we also provide you with wall mount related products such as seamless steel tube,steel pipe,line pipe,casing pipe coupling material,oil casing. We pay attention to mend and perfection of the quality management system, and also insist on quality policy "Science and technology innovation, quality paramountcy"in all time | 
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