Metal Etching ...coating of chemical resist ink 

Roller kaha milega??

Is this roll metal or plastic?

Sir I want to learn how to each steel can you help me

esey dry krney ka process kya hey owan k alwawa???

Sir coating kesy bnta ha plz ye btaen

So what?? I see people paint surface. Next what?

Sir, its nice work, Ye dry hone me itna time leti he.. ? How to dry?.

Yah ink kitni der mein sakti hai

Hi, where do you get chemical resistant ink??

Sukane ka batado

नमस्ते भाई, इस केमिकल का नाम क्या हैं। और कहा मिलेगा?