... N80,L80,p110 3.technology:seamless pipe 4.OD:114.30-508.00mmoil well casing1.standard: API 5CT2.Steel grade ... ,K55,N80,L80,p1103.technology:seamless pipe4.OD:114.30-508.00mmAPI 5CT casing pipe specificationShandong Jialong Petroleum Pipe ... /N80/L80/P110STC/LTC/BTCR1/R2/R37”177.825.30-84.9817.00-57.10J55/K55/N80/L80/P110STC/ ... LTC/BTCR1/R2/R37 5/8”193.6835.72-82.3024.00-55.30J55/K55/N80/L80/P110STC/LTC/ ...