
Product Specification
1. Ergonomic medium-height backrest – Continuous raised back and lumbar support shapes made of sponge, effectively relieving fatigue during long-term sitting.
2. Concealed foldable writing tablet – Wooden writing board stored inside the armrest base, saving space while providing a sturdy writing surface.
3. Silent damping return mechanism – Spring plus imported damping unit ensures smooth, zero-noise automatic retraction (< NR-20); tested for over 50,000 cycles trouble-free.
4. High-density flame-retardant PU foam – Density 55, cold-foam integrally moulded with spring steel frame, offering soft feel, excellent resilience, and lasting shape retention.
5. Premium hardwood & beech construction with acoustic design – 7-layer bent wood shell veneered with imported beech, finished with eco-friendly paint; unique honeycomb sound-absorbing pores achieve an overall absorption rate of 0.5 and eliminate echoes within 0.1 seconds.
6. Durable anti-corrosion hardware – "Zhugang" brand metal parts with electrostatic powder coating, electrophoretic primer, and 400-hour salt spray resistance; floor screws and chair legs fully anti-rust treated.

Detailed Specifications
Seat and back cushion – Made of high-density ultra-soft PU with high-efficiency flame-retardant additives and a spring steel frame structure, cold-foam integrally moulded. Conforms to ergonomic principles, offering a soft, comfortable feel with excellent resilience. Maintains its shape even after prolonged use, with a density of 55.
Seat and back shell – Constructed from high-quality, high-density hardwood 7-ply bent wood board, externally veneered with imported beech wood. The surface is finished with imported Taiwanese "Dabao" environmentally friendly paint, resulting in an elegant and stylish appearance with strong resistance to deformation. The internal seat frame is a composite structure of steel frame, velvet cloth, and sponge. Features unique honeycomb sound-absorbing pores, achieving an overall sound absorption rate of 0.5. The entire hall can eliminate echoes within 0.1 seconds, ensuring good seat breathability and a noise-free environment for the whole venue.
Upholstery fabric – Soft linen-velvet fabric, stitched into shape. It has strong permeability, excellent sound absorption, is wear-resistant, colour-fast, and offers moderate softness. Easy to clean. Colour and texture can be customised according to client requirements. Can also be treated as needed to meet requirements for 3M stain resistance; Teflon liquid/stain repellence and dust resistance; anti-static, anti-bacterial, anti-mildew, and fire retardancy. Flame retardant performance meets standards such as China's GB8410-94, GB17951-1998, and Britain's BS7176, BS5852.
Hardware – Utilises "Zhugang" brand products. Surfaces undergo degreasing, dusting, acid picking, and phosphating before electrostatic powder coating. The foot base is formed from cold-rolled steel plate stamping with a thickness not less than 2.5 mm. Chair frame, seat support, and chair legs undergo anti-rust treatment, followed by an 18-micron electrophoretic coating as an anti-corrosion primer. Then, a 30-micron epoxy resin spray coating is applied, ensuring no rust in salt spray tests for 400 hours or salt bath tests for 100 hours. Paint film adhesion exceeds Grade 2, with qualified test certificates obtained.
Armrests – Armrest surfaces are made from imported beech wood, finished with Taiwanese "Dabao" environmentally friendly paint.
Writing tablet – Features a concealed foldable writing tablet with a wooden writing surface. It can be stored inside the armrest base, making efficient use of space.
Return mechanism – Spring plus damping automatic return mechanism ensures smooth and consistent return motion with zero noise. Fault-free operation for over 200,000 cycles. Equipped with an imported blocking device, ensuring completely silent operation (< NR-20) and fault-free operation for over 50,000 cycles.
Floor fixing screws and metal parts – All screws, metal components, and chair leg screws undergo anti-corrosion treatment according to standards. Chair legs and other metal parts receive anti-rust and anti-corrosion treatment.
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This auditorium chair features 590 mm centre distance, 850 mm overall depth, 730 mm seat depth, 1001 mm total height, 169 mm seat height, 615 mm backrest height, and approx. 85 mm armrest width. The concealed foldable wooden writing tablet saves space while offering sturdy support. Seat and back cushions are integrally cold-foam moulded from high-density flame-retardant ultra-soft PU with a density of 55 and a spring steel frame, ensuring soft comfort and lasting resilience. The shell is made of 7-layer high-density bent wood board with imported beech veneer and eco-friendly paint, featuring unique honeycomb sound-absorbing pores that achieve an absorption rate of 0.5 and eliminate echoes within 0.1 seconds. The damping return mechanism combines spring and imported silent damping units, delivering zero-noise automatic retraction (< NR-20) and tested reliability over 50,000 cycles. Hardware features "Zhugang" brand with multi-stage anti-corrosion treatment, including electrophoretic primer and epoxy powder coating, passing 400-hour salt spray tests. Armrests are crafted from solid imported beech. Upholstery uses linen-velvet fabric with optional flame-retardant, stain-repellent, and anti-bacterial treatments, meeting GB and BS fire safety standards. This series suits high-end meeting rooms, auditoriums, conference halls, screening rooms, and multi-functional venues, delivering durability, comfort, and acoustic excellence.