Shear Connector, High Strength Bolts, Welding Stud manufacturer / supplier in China, offering High Strength Twist off Type Tor-Shear A325 Tc A490tc Inch Bolt According to ASTM F3125, ASTM F3125 Grade A490 Type 1steel Structural Bolt with Black Finish, Carbon Steel or Alloy Steel BS En14399-3 Preloaded Hr Bolt Hex Hexagon Head 8.8/10.9grade and so on.
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