PROOF COIL CHAIN GRADE 30 
Available Sizes from 5.5 mm. – 10 mm.
Proof Coil Chain Grade 30 Its property of breaking strength is 3-1/2 to 4 times of its working load limit. It is used primarily for heavy duty works such as towing vehicles and particular industrial applications etc. Manufacturing conform to National Association of Chain Manufacturer, ASTM/ANSI 413 Grade 30.
TEST CERTIFICATION: all grade 30 chains are proof tested, available upon request
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