Alloy Steel (Gr-80) Endless Chain Sling Swl-05 Ton, Effective Length 4 Feet. As Per Is: 6215-1982. Ma Terial To Be Supplied With (I) Load Test Certificate In Form No 8 Part -1 And Part-Iii As Per W.B. Factory Act 1 958 By Competent Person Is Required.(Ii) Competency Certificate In Form 29B As Per W. B> Factory Act 1958 Is Requ Ired In Vouch Of Competency Of The Competent Person.(Iii) Test Certificate From Manufacturer [ Warranty Period: 30 Months After The Date Of Delivery ] ]