苏州分公司，电话:13829766855采用特殊聚氯乙烯材料制成,保证不含锅,其防火级别为M1,通过一次或多次切割,并用高频焊接完成,它是要按照在实地测量出的天花的形状及尺寸在工厂里生产制作.soft membrane:Made from PVC,absolutely free of cadmium;M1 fireproof rating;shaped after one or more cuttings and finished by high frequency welding;pre-made in the factory in accordance with shape and size obtained by field measuring.