Seamless Rectangular Pipe Size 100 * 50 * 12 Q345 square and rectangular tube, product quality standards. Factory prior to shipment to the confirmation sent me pictures, really no cracking or serious distortion that may occur in our imagination, to the customer after the photograph to the customer, the customer is very satisfied with the product, the delivery should also be a revelation . Was initially worried about cracking, in order to avoid the occurrence of such a situation, we ordered the production of raw materials when ordering multiple tube 5 of raw materials, experiment do first test to see whether the crack is not like annealing do occur case, after the test, no cracking occurred case. 

After this specification is similar to thick-walled rectangular pipe, we can begin to produce, in addition to a lot of unnecessary worry 

Our company is a professional manufacturer of acoustic tube and, if relevant inquiry, please contact me 15131788678