ngwaahịa eji 1.Galvanized ígwè ọkpọkọ: Galvanized ọkpọkọ na-ọtụtụ ebe, na eke gas pipeline na anyị kwa ụbọchị ndụ bụ galvanized welded ọkpọkọ, kpo oku, griin haus-ewu na-ejikwa galvanized ọkpọkọ, ụfọdụ ụlọ ewu shelf ọkpọkọ iji gbochie corrosion, ojiji. galvanized pipe.wa...
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