... Casing Tube-----------------------------------------------------------------------------------------------------------------Features Materials: H-40,J-55,K-55,N-80,C-75,L-80,C-90,C-95,P ... , BTC, LTC,STC Grades: H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P ... Steel plant. Due to this reason, we have full types material supply. Moreover, we are neighbor to Yingkou sea port , Dalian sea ...