Sprayed square tube + dipped plastic

       Coating material: polyester

　　Coating thickness: greater than or equal to 76um.

　　Appearance: uniform, smooth, smooth line, consistent color.

　　Pinhole: 1500V without spark

　　Adhesion: No peeling off of the coating after the scratch test.

　　Impact: No peeling and cracking.

　　Chemical reagent resistance: no blistering, softening, loss of adhesion, etc.

　　High and low temperature: no wrinkling, swelling, peeling, etc.

　　Accelerated weathering: no major discoloration, no cracks, breakage, etc.

　　Salt water spray: no blistering, peeling, rusting, etc.