steel oil pipe Material: L8013Cr, 27CrMo, 26CrMo Normal sizes: OD 60.3 X WT 7.11mm, etc steel oil pipeAPI TUBES for the carbon ... like wuxi zhenda, wuxi dingyuan,etc. the price is nice and the service is the best. we can supply SSAW,LSAW ... ,welded for the titanium product, my company have own factory, and my factory had passed the LR certified, PED Certificate ...