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quotation for nuts and bolts (iso9001-2008)we are a big manufacture of bolts and nuts. i am a export manager of handan haosheng fastener co.,ltdhandan haosheng fastener co.,ltd. locate the largest production base of standard fasteners of china and has excellent geographical location, convenient transportation. our factory covers an area of more than 3000 square meters and is one of the biggest fastener manufacture enterprise.our company has attained iso9001-2008 certification and independent import and export rights. we believe quality brings in markets and improvement brings in progress.the company has the advanced imported and domestic equipment more than 200 sets best regard & thanks