5-1/2 In N80 Grade Casing Pipe

5-1/2in N80 Grade Casing Pipe AddThis Sharing Buttons Share to FacebookFacebookShare to TwitterTwitterShare to LinkedInLinkedInShare to PinterestPinterestShare to ...AddThis 5-1/2in N80 Grade Casing Pipe use for oil exploration,Oil Perforation. Send InquiryChat Now Product Details: 5-1/2in N80 Grade Casing Pipe Introduction 5-1/2in N80 Grade Casing Pipe use for oil exploration,Oil Perforation. All wells drilled for the purpose of oil or gas production (or injecting materials