耐酸碱可焊接灰色塑料板3mm5mm8mm9mm10mm12mm1.61.71.8密度PVC硬板耐酸碱可焊接灰色塑料板3mm5mm8mm9mm10mm12mm1.61.71.8密度PVC硬板耐酸碱可焊接灰色塑料板3mm5mm8mm9mm10mm12mm1.61.71.8密度PVC硬板耐酸碱可焊接灰色塑料板3mm5mm8mm9mm10mm12mm1.61.71.8密度PVC硬板耐酸碱可焊接灰色塑料板3mm5mm8mm9mm10mm12mm1.61.71.8密度PVC硬板耐酸碱可焊接灰色塑料板3mm5mm8mm9mm10mm12mm1.61.71.8密度PVC硬板耐酸碱可焊接灰色塑料板3mm5mm8mm9mm10mm12mm1.61.71.8密度PVC硬板