cc523pate 发表于 2018-1-22 19:59:03

DIN 51350-2-2010 Testing of lubricants -- Testing in the four-ball tester

DIN 51350-2-2010 Testing of lubricants -- Testing in the four-ball tester -- Part 2: Determination of welding load of liquid lubricants



admin 发表于 2018-1-23 20:17:45


谢谢您的分享，金币已奖励!
页: [1]
查看完整版本: DIN 51350-2-2010 Testing of lubricants -- Testing in the four-ball tester