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Contact SupplierWe are offering Surface: Plain, zinc, yellow zinc, hot dip galvanized, black etc.
Grade: class 4.8 8.8 10.9 12.9
Size: M3-M52
Delivery time: 35 days after the order confirmation
Payment: TT, LC, Western Union
Certifications: ISO9001, CE, SGS, API
Advantages: a, Competitive price, b, OEM service available
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