nih4dThe existing 3D printing methods exhibit certain fabrication-dependent limitations for printing curved constructs that are relevant for many tissues. Four-dimensional (4D) printing isJADI PADA PERCAYAKAN SPIN ANDA HANYA DI NIH4D SAJA DAHH JELAS PROFIT TERUS ANTI SEDOT WC. AUTO LANGSUNG WD 4.000.000 JUTA !!.. LINK GACORR