... exchanger, boiler,fluid transfer and structure.max Length >12m seamless stainless steel pipe tube316Material:TP304, TP304H, TP304L, TP316, TP316L, TP316Ti,TP316LN, TP317 ... , A790examination:huey text,tension test,flaring test,flattening test,grain size,metallographic test,sclerometer,hydrostatic pre ssure test,eddy current inspection,ultrasonic inspection seamless stainless steel pipe tube