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Our new patented products, "locked & safety bolts & nuts", are a kind of special
new designs with international standard so called anti-loose and anti-theft bolts.
They have worked outstanding on power line tower and communication line tower
and to where needs other security purpose. CD is available upon request.
Anti-Loose & Anti-Thief Bolts & Nuts
Nanjing Yunfan Technology Industry Co., Ltd.
precision machining, metal casting, plastic products, car accessories, OE...
