The main products: API-5CT oil casing, oil tubing, tubing pup joint, Tubes'coupling, Lengthening type oil pipe coupling, Change diameter type tubing coupling, Conversion type, change button type, oil sleeve buckle, super 13Cr, 28Cr API 5D drill pipe, drill pipe thread protector,API 5L line pipe, alloy pipe, precision cold drawn seamless steel pipe, elbow, pipe tee, flange
Oil casing coupling specifications: 2-3/8”—20” inch, button type: EU SC LC BC NU
Material: H40, J55, K55, N80, L80, C-90, C95, T95, P110, Q125,13Cr-80,13Cr-110, super 13Cr, etc..