... in a steel structure prefabricated house. Foam EPS sandwich panel is one of main ... thickness is 50mm,75mm,100mm. Laizhou Hongshengda Machinery Co., Ltd. ,belongs to Lazhou Construction ... machine,automatic submerged arc welding machine,automatic machine legislation overturned group,H-beam straightening machine,shot crew rusing,Bending machine,three-dimensional numerical control drilling machine ...