1, wallpaper paste firmly, the same color surface, no air bubbles, empty drums, cracks, Alice, wrinkles and stains, no squinting glue marks.
2, the surface is smooth, no ripples. The wallpaper is closely linked to the hanging mirror, the veneer, and the baseboard, with no gaps.
3, each piece of stitching should be horizontal and vertical, stitching pattern, pattern fit, not from the seam, not overlapping, 1.5 meters away from the wall at the front, no significant patchwork.
4. The yin and yang corners are vertical, with clear edges and corners. The sun's yoke is lap-smooth, and the sun's corner is seamless.
5, wallpaper edge straight and tidy, no paper hair, flying thorns.
6, there must be missing and delamination defects.
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Stainless Steel Seamless Round Pipe
Stainless Steel Pipe is a kind of hollow long round steel, which is widely used in petroleum, chemical, medical, food, light industry, mechanical instruments and other industrial pipelines and mechanical structural parts. In addition, when the bending and torsion strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also used for furniture, kitchenware, etc. The hardness of stainless steel pipe is usually measured by Brinell, Rockwell and Vickers. Annealed stainless steel pipe with inner diameter of more than 6.0 mm and wall thickness of less than 13 mm. Production process of stainless steel seamless pipe A. round steel preparation; b. Heating; c. Hot rolling perforation; d. Cutting head; e. Pickling; f. Grinding; g. Lubrication; h. Cold rolling; i. Degreasing; j. Solution heat treatment; k. Straightening; l. Pipe cutting; m. Pickling; n. Finished product inspection. Common materials are 201, 304 and 316.ETC
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Shandong Xinsuju Steel Co.,Ltd. , https://www.sawlpipe.com