1. Ceiling and Top Painting 1) Based on the design elevation of the ceiling, a deviation of ±5mm in the horizontal plane is acceptable. 2) The galvanized iron wire used for hanging ribs must be at least No. 8 gauge, and expansion bolts should be used as lifting points for secure attachment. 3) If wooden keels are used, they must be free from cracks or warping, made of red or white pine. The main keel size should not be smaller than 50mm×70mm. 4) Paint must be applied evenly on the drum surface, ensuring it is flat with no noticeable depressions or unevenness. 5) In bathrooms, avoid using gypsum board, mineral wool board, or plywood that may warp due to moisture. Instead, use metal or plastic panels for better durability. 6) The cover panel surface should be smooth, with straight and uniform seams, and free from defects like missing corners or cracks. 7) The joints between the cover panel, keel, and dragon bone structure must be tightly connected, ensuring stability and safety. 8) All wooden keels must be coated with fireproof paint. Those in contact with walls or installed in bathrooms should also be treated with preservatives. Note: Wooden keels are rarely used in standard renovations, typically found only in high-end projects. 2. Tile, Wallpaper, and Painted Walls 1) The wall surface must be smooth and flat. When viewed under light, there should be no significant reflection. Corners should be square and straight. 2) At corner junctions, wallpaper and wall coverings should overlap neatly, with no visible seams after taping. 3) Quality wallpaper and coverings should not have bubbles, hollow drums, cracks, curled edges, wrinkles, or stains. They should adhere firmly and maintain consistent color. 4) Wallpapers, wall coverings, mirror lines, door covers, curtain boxes, and skirting boards should fit tightly without any gaps. 5) Seams should be straight and aligned, with consistent patterns and no overlaps or separations. From a distance of over 1 meter, seams should not be visible. 6) Partial tiles around protrusions (like pipes) should be cut precisely, with clean edges matching the surrounding area. 7) Tiles must be firmly attached, with no empty drums, color differences, or issues like skewing, chipping, or cracking. 8) Seam height should be about 5mm, and the wall surface should be flat with vertical deviation allowed up to 2mm. 3. Panel Flooring and Wooden Flooring 1) Common floor materials include marble, granite, and ceramic tiles, all bonded with cement and sand (some with adhesive). The surface should be even, smooth, and consistent in texture, pattern, and color. 2) The top and bottom layers must be fully bonded. Knocking should not produce any hollow sounds, and seams should be straight and uniformly wide. 3) Wooden keels, subfloor, and mat soil used for wooden flooring should be sturdy and straight, preferably treated with preservatives. 4) Hardwood flooring should be nailed on all four sides, leaving a 5–10mm gap between the floor and the wall, covered by baseboards to prevent "horse feet" effects. 5) Joints should be tight, with staggered nails and no loose feeling. No sound should be heard when walking on the floor. 6) The wooden floor surface should be smooth, free from splinters, scratches, or uneven coloring, with clear wood grain and an even finish. 4. Wood Products (Cabinets, Siding, Doors, etc.) 1) Cabinets and wall cabinets must be securely installed, with no looseness or deformation. Corners should be neat, doors should open smoothly without tilting or rebounding, and no nail caps or hammer marks should remain. 2) Edges of moldings, curtain boxes, and door frames should not exceed 2mm in deviation, and verticality should be within 2mm. A simple hammer test can help identify issues. 3) Siding surfaces should be smooth and even. If patterns are used, slabs should match in width and closely align. No hammer marks, dirt, or exposed nails should be present, and edges must be straight. 4) Joints on door frames, curtain boxes, and mirror lines should be tight, with 45-degree angles for seamless connections and no gaps against the wall. 5) After painting, the surface should be smooth, free from brush marks, leaks, or peeling. Water-based finishes should highlight the wood grain, while oil-based ones should show even color. It's essential to inspect before painting, as defects are hard to fix once covered. 5. Water Supply and Drainage Pipes, Sanitary Ware 1) Pipe installation should be straight and level, with unobstructed flow. Valves should be positioned for easy future maintenance and replacement. 2) For concealed piping, perform a water test and pressure check after completion to ensure no leaks at joints or connections. 3) Sanitary fixtures should be installed after the ceiling is complete. Ensure proper installation of bathtubs, toilets, sinks, and other fixtures, checking for leaks carefully. A single leak can cause major damage to lower floors. 4) Accessories such as mirror boxes, soap dispensers, towel bars, and shower rods must be securely fastened (preferably with expansion bolts), positioned correctly, and free from damage or gaps. 6. Electrical Wiring and Installation 1) Concealed wiring should be placed in PVC flame-retardant or metal conduits. Wire joints must be in junction boxes, not wrapped in cloth and buried directly into walls. 2) Different wires should be used for different purposes. Telephone lines require special sheathed cables, while cable TV needs 75-ohm coaxial cables. Lighting circuits should be at least 1.5mm², and air-conditioning lines at least 2.5mm². High-power appliances may require larger cables. 3) Power, telephone, and cable TV wires should not share the same conduit. Use concealed outlets and switches, and consider adding a leakage protector. Junction box ends should have at least 15cm of wire left for future access. 4) Large chandeliers and fans should be mounted with steel bars of at least 8mm diameter, embedded in the ceiling and secured firmly. The minimum height should be 2.3 meters. 5) Wall lights and chandeliers should be fixed with expansion bolts. The chandelier’s center should be aligned with the support, and the power cord should not bear the weight of the fixture. 6) Exhaust hoods must be installed according to manufacturer instructions, ensuring correct height and angle. Avoid making them just for aesthetics. Always supervise and inspect during installation, as hidden wiring is hard to check later. Multi-connectors should be tested for functionality, and any non-compliant work must be corrected immediately. The 150W, 320W, 300W, 400W, 730W, and 1000W plant lights are high-quality lighting solutions designed specifically for plants. These lights provide the necessary spectrum of light for optimal plant growth and development. With their powerful output, they can effectively support the growth of various plants, from small indoor herbs to large flowering plants. These lights are energy-efficient and have a long lifespan, making them a cost-effective choice for both hobbyist gardeners and commercial growers. 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