自慰无码一区二区三区,午夜牲交大片,国产精品无码久久AV嫩草,99久久无码一区人妻A黑

    In order to meet the needs of polyurethane sandwich panel production, a variety of laminators, including single-layer, multi-layer and 2+2 type, have been developed, which have been widely used in cold storage board, central air conditioning duct and steel structure housing wall panel foaming.


1+1 layer press

2+2 layer press

2+2 layer press

Angle moulding press