022-86967779 其中线管钢级有API5L-PSL2: BR/L245R X42R/L290R BN/L245N X42N//L290N X46N/L320N X52N/L360N X56N/L390N X60N/L415N BQ/L245Q X42Q/L290Q X46Q/L320Q X52Q/L360Q X56Q/L390Q X60Q/L415Q BM/L245M X42M//L290M X46M/L320M X52M/L360M X56M/L390M X60M/L415M X656M/L450M X70M/L485M X80M/L555M X90M/L625M/X100M/L690M L120M/L830/L245/L360/A53/ J55/N80X42/X46/X52/X56/X60/X65/X70等特殊材质； 　　直径：6mm-114mm，219mm-426mm，80mm-820mm，壁厚：1mm-12mm，14mm-80mm；另外可根究客户要求定做特殊规格型号。　　 管线管材质：BR/L245R、X42R/L290R、BN/L245NB、X42N/L290NB、X46N/L320N、X52N/L360NB、X56N/L390N、X60N/L415N、 X42Q/L290Q、X46Q/L320Q、X52Q/L360Q、X56Q/L390Q、X60Q/L415Q、BM/L245M、X42M/L290M、X46M/L320M、X52M/L360M、X56M/L390M，X60M/L415M等……