etching test इन हिंदी

etching: निक्षारण चित्रकला

test: जांच परख टैस्ट मैच

	1.	Etch test for macrostructure and defect of steels
	2.	Method of oxalic acid etching test for stainless steels
	3.	Steel products - method for etch test of tower sample
	4.	Methods of acid etch test for transvese macro - structures of heat - resisting superalloys
	5.	Methods of acid etch test for longitudinal macro - structures of heat - resisting superalloy bars
	6.	Deep etch test

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