Can you give verses in the quran about hijab and veli?
You need to read Tafseer and Hadith for better understand those verses
About hijab there are one more Ayah
O Prophet, tell your wives and your daughters and the women of the believers to bring down over themselves [part] of their outer garments. That is more suitable that they will be known and not be abused. And ever is Allah Forgiving and Merciful..
Surah Al Ahzab, 33: 59 link
Tell the believing men to reduce [some] of their vision and guard their private parts. That is purer for them. Indeed, Allah is Acquainted with what they do.
Sura An Nur 24:30 link
O children of Adam, We have bestowed upon you clothing to conceal your private parts and as adornment. But the clothing of righteousness - that is best. That is from the signs of Allah that perhaps they will remember.
Sura Al A'raf , 7 : 26 link