Service
| Raw material | Use | Importance note |
| PVC resin powder | Main substrate, plasticization | Determines the strength, toughness and environmental performance of the floor |
| Heavy calcium carbonate CaCO3 | Filler to form a stone-plastic core layer | The proportion is high (about 60%-70%), which affects the dimensional stability |
| Stabilizer | Heat stabilized, anti-yellowing | Determine the environmental protection level and processing performance of the product |
| Processing aids | Control core density and foundational properties | Ensure that the core layer is not brittle or shrinkage |
| Wear layer | Surface scratch resistant | Determine the level of wear layer |
| Decorative film | Patterns, colors | Affects aesthetics (print clarity, color fastness) |
| EVA/IXPE underlayment | Silent, non-slip, comfortable | It is mainly used to lock the additional cushion on the back of the floor |



A-class
B-class
C-class
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