
Pren 818-7 - Short Link Chain For Lifting Purposes - Safety - Part 7: Fine Tolerance Chain For Hoists, Grade T (types T, Dat And Dt)
出版:British Standards Institution

專家解讀視頻
Pren 818-7 - Short Link Chain For Lifting Purposes - Safety - Part 7: Fine Tolerance Chain For Hoists, Grade T (types T, Dat And Dt)
出版:British Standards Institution
專家解讀視頻