... 0.25~3mm Length: 6000mm max 316 stainless steel tube 200 series,300 series,400 series etc 316 stainless ... Quality: PrimeSupplier: YDGTStandard: ASTM,AISI,GB YADA STAINLESS STEEL TUBE DESCRIPTION: NAME: SEAMLESS STAINLESS STEEL PIPEType: AusteniticGrade: TP304 304L ... boiler,heat exchanger,super heater Test Equipment: Eddying Test ,Ultrasonic Test,Hydrostatic Test,Hardness Test. Impact Test,Flaring Test, ...