20t Proof-Load Per Lug x 6off Lugs. Static proof load test of welded lugs utilising bespoke designed/manufactured attachment + calibrated hydraulic rams. 20t proof-load per lug x 6off lugs. admin2016-12-07T00:04:35+00:00March 18th, 2016|Proof Load Testing| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail