alleryএচিড ব্যৱহাৰ কৰি ধাতুৰ পৰা মামৰ আঁতৰোৱা কাৰ্যক কি বুলি জনা যায়?
Aগেলভেনাইজিং
Bএনেলিং
Cস্মেল্টিং
Dপিকলিং
Answer & Solution
Correct answer: D. পিকলিং
মামৰ আৰু ক্ষয় আঁতৰাবলৈ এচিডেৰে ধাতুক উপচাৰ কৰা কাৰ্যক পিকলিং বোলা হয়।
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