309 seamless stainless steel pipe
Size 1/8" -30" All Astm312/A358/A778,ASME B36.19M are individually covered so that the premium quality of materials is retained and there are no damges in the last stages of production. We also ensure that we deliver our orders promplty and that the quality remains intact.
Specifications:309 seamless stainless steel pipe
Q:How do you control the quality during the polishing process?
A:1)As for the mirror polish square/rectangular tube , we will polish it as least four times)
2)During the polishing processing, we set a special sanding wheel to polish the welding part.
3)To avoid scratches,after polishing,the tubes will be lay out on a steel crate then we could lift the whole steel crate instead of the tube.
4)Then, we have quality control department to check product .
5)After all steps, we use the gunny bags to protect the tube's surface when the tube laying-out.