C&N Industiral,huitong limtied is professional pipe,flange and fitting manufacturer,our products approved by PDO, SADARA, SWCC,PDO etc.
We are a professional manufacturer and exporter of ASTM A320 L7M stud bolt A194 7M Heavy Hex nuts in China
ASTM A320 L7M Stud Bolts are used for LOW temperature performance. These fasteners are commonly used for valves, flanges, fittings, and pressure vessels .
