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Material: All of the raw materials of Vinmay are from high quality suppliers such as BAOSTEEL,TISCO,TSINGSHAN,
and so on, so shat we can make sure the stability and rust corrosion resistance of ou products.
Welding: Our material are fully annealed. In this way, mechanical properties are in a good condition and the hardness could be controlled under 190V. They are good for welding process,our tubes can get fully welding and smooth inner welding,without blisters, leak welding or black line).
Polishing: 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 sent on the platform automatically.
Quality Testing: All of the products are inspected strict with the ISO9001-2008 quality management systems and the quality standards of ASTM A554. Our Qualilty inspectors inspect the tubes during from raw material, tubes welding, polishing and packaging.
Package and Delivery
Each tube being packed by plastic bag, then several tubes packed by hollow plate.
Shipped in 35 days after payment
We have always been trying to provide the best service and reliable products for every customer, however, accident may happen sometimes, please contact us to resolve any issue before leaving a negative feedback.