1. The incoming materials of the chimney lighting project must be consistent with the brand and specifications stipulated in the contract and the drawing design.
2. The incoming materials must have the factory certificate and test report. If there is no factory certificate or test report, they will be treated as unqualified materials.
3. The guardrail tube, digital tube, scanner, etc. must be well packaged. If the package is damaged or unpackaged, it will be treated as unqualified materials.
4. Digital tubes, guardrail tubes, blister characters, acrylic signs, etc. must not be broken, scratched, damaged, bent, uneven, burrs, etc. If Party B's materials have the above defects, they will be treated as unqualified materials.
5. The joints of signs and light boxes must be flat and smooth, the height difference should not exceed 1mm, and the gap should not be larger than 1mm. The gap is tightly sealed with waterproof glue, and there should be no leakage or seepage.
6. The edges of signs and light box characters must be smooth and flat, without burrs or defects.
7. The installation of signs and light boxes must be firm, and there should be no loosening, shaking, or skewing. The distance between the signs and light boxes must be constructed in strict accordance with the drawings.
8. The digital tube frame body is made of two anti-rust paints and a gray finish paint on the surface. There should be no leakage, sagging, peeling, and wrinkles.
9. The line pipe is laid in the open pipe, the deviation of the verticality within 2m of the pipeline shall not exceed 2mm, and the deviation of the verticality of the whole length shall not exceed 1/2 of the inner diameter of the pipe.
10. The bending radius of the line pipe shall not be less than 6 times the outer diameter of the pipe, and the bending radius of the cable shall not be less than 160mm.
11. Tubes and tubes, tubes and boxes, tubes and boxes (boxes) and other devices should be inserted and connected, and special glue should be applied to the joint surface of the joint. The joint should be sealed tightly and there should be no water leakage.