Description

Jiangyin Jianhe Steel Co., Ltd. is a Chinese factory specialized in manufacturing structural hollow sections including rectangular, square and circular steel tubes and other steel structural products.
We have CE certification and ISO ***1.
Our size range: 
1. *0**0mm to **0***0mm for welded square hollow sectuons.
Thickness: ***6mm
2. *0**0mm to **0***0mm for welded rectangular hollow sections.
Thickness: ***6mm
3. OD**8mm-OD**5mm for high-frequency straight seam welded circular hollow sections.
Thickness: ***0mm
4. OD**8mm-OD***4mm for JCOE straight seam submerged arc welding tubes.
Thickness: ***0mm
Steel Grade: S**5, S**5, ASTM A**0 Grade A & B & C, STKR **0 and so on.
Our standard quality certificate shows: mechanical properties with J value at minus *0 degrees C / chemical composition with *4 elements / CEV / direction of the test piece.