
Product Specification
1. Ergonomic medium‑height backrest – Continuous raised back and lumbar support shapes made of cold‑foam 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 ultra‑soft PU foam – Seat and back cushion integrally cold‑foam moulded with spring steel frame, offering soft feel, excellent resilience, and lasting shape retention.
5. Premium hardwood & beech construction – Shell made of high‑density seven‑layer bent wood board, veneered with imported beech, finished with eco‑friendly paint; armrest surfaces also in solid beech.
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
Upholstery fabric – Soft linen‑velvet fabric, sewn into shape. Features strong permeability, excellent sound absorption, wear resistance, colour‑fastness, and moderate softness. Easy to clean; custom colours and textures available. Optional treatments: 3M soil resistance, Teflon liquid/stain and dust repellency, anti‑static, anti‑bacterial, anti‑mildew, and fire retardancy. Flame retardancy meets GB8410‑94, GB17951‑1998, and UK BS7176, BS5852 standards.
Seat and back cushion – Made of high‑density ultra‑soft PU with efficient flame‑retardant additives and a spring steel frame structure, cold‑foam moulded in one piece. Conforms to ergonomic principles, offering soft, comfortable feel with excellent resilience. Retains shape even after prolonged use.
Seat and back shell – Constructed from high‑quality, high‑density hardwood seven‑layer bent wood board, veneered with imported beech wood. Surface finished with imported Taiwanese “Dabao” environmentally friendly paint, resulting in elegant, stylish, and deformation‑resistant appearance. The internal seat frame is a tri‑composite of steel frame, flannel, and sponge.
Hardware – Utilises “Zhugang” brand products. Surfaces undergo degreasing, dusting, acid picking, and phosphating before electrostatic powder coating. Foot base formed from cold‑rolled steel plate via stamping, thickness not less than 2.5 mm. Chair frame, seat support, and chair legs receive anti‑rust treatment, followed by an 18‑micron electrophoretic coating as corrosion‑resistant primer, then a 30‑micron epoxy resin spray. Passes 400‑hour salt spray test or 100‑hour salt bath test without rusting. Paint film adhesion exceeds Grade 2; certified test reports provided.
Armrests – Armrest surfaces made of imported beech wood, finished with Taiwanese “Dabao” environmentally friendly paint.
Writing tablet – Concealed foldable writing tablet made of wood, stored inside the armrest base, making efficient use of space.
Return mechanism – Equipped with a spring plus damping automatic return mechanism, ensuring smooth and consistent retraction with zero noise. Guarantees trouble‑free operation for over 200,000 cycles. An additional imported damping device ensures completely silent operation (< NR‑20) with trouble‑free use for over 50,000 cycles.
Floor fixing screws – All screws, metal components, and chair leg screws undergo standard anti‑corrosion treatment. Metal parts such as chair legs receive anti‑rust and anti‑corrosion treatment.
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This auditorium chair features 580 mm centre distance, 910 mm overall depth, 770 mm seat depth, 1000 mm total height, 170 mm seat height, 615 mm backrest height, 460 mm seat width, and approx. 80 mm armrest width. The concealed foldable wooden writing tablet saves space while offering sturdy support. Seat and back cushions are cold‑foam moulded from high‑density flame‑retardant ultra‑soft PU with a spring steel frame, ensuring soft comfort and lasting resilience. The shell is made of seven‑layer high‑density bent wood board with imported beech veneer and eco‑friendly paint. 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 aesthetic elegance.