Wenderoth, Lind & Ponack
Manufacturing method of composite sheet material having different type of surfaces
 A composite sheet material is manufactured by steps of impregnating a synthetic resin in a glass fiber sheet material, heating one surface of material to cure and cooling its other surface to retain as uncured. 
Suzuki Kanshi Co., Ltd.
B B B
B29K B29C B29K
additional inventional additional
Yasuyuki
Suzuki