Synthetic resin tile main materials in PVC resin oneself belong to flame retardant materials, the national fireproof department to examine fire performance reach B1 level.
合成树脂瓦主体材料聚氯乙烯树脂自身属于难燃材料，经国家防火部门检测防火性能达到B1级。
Synthetic resin tile main materials in PVC resin oneself belong to flame retardant materials, the national fireproof department to examine fire performance reach B1 level.
合成树脂瓦主体材料聚氯乙烯树脂自身属于难燃材料，经国家防火部门检测防火性能达到B1级。
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