AC MAG RY COIL AC220V 1NO&1NCCONTACT RATING 380VAC 4A
3RH1122-1AP00+3RH1911-1GA04SIEMENS

The impact of the 4D printer on the international market
The most obvious advantage of 4D printing is that objects larger than printers can be printed as just one part. Because they can shrink and unfold, items that are too large to fit in a printer can be compressed and then become full size.