... resistance 2.resistance to crowded destroyed sex Product Details: ProductOil Line Pipe Place of originTianjin,China mainlandStandardAPI 5CT,API 5L,API ... ,J-55,N-80,P-110,C-75,C-95,L-80,C-90,Q-125,etcThickness5mm-20mmCross-section ShapeRoundOuter diameter70mm ...