manufacture and supply of following steel outfit items for roro vessel, yard 804 of wbtc ltd. as per technical specification, mentioned on section – c of niet: i ) steel weather tight hatches, ii ) steel manholes with pad, iii ) bollards, iv ) ramp hinge and hinge pin, v ) steel weather tight rh doors. -1 steel weather tight hatches – as per is - 7048 : 2006, coaming plate thk. 8 mm; complete in all respect as per enclosed drg. swl-roro-21 ( sheet no. 1 of 2 & 2 of 2 ) ; 1.01 size: 600 mm x 600 mm, coaming height – 600 mm; quantity – 03 ( three ) nos.; 2 steel manholes with pad – as per is – 15876 : 2009; complete in all respect as per enclosed drg. swl-roro-21 ( sheet no. 1 of 2 & 2 of 2 ) ; 2.01 size: 600 mm x 400 mm; quantity – 18 ( eighteen ) nos.; 2.02 size: 450 mm x 350 mm; quantity – 02 ( two ) nos.; 3 bollards – as per is - 4374; complete in all respect as per enclosed drg. swl-roro-21 ( sheet no. 1 of 2 & 2 of 2 ) ; 3.01 type – b1, b2, b5 & b6; quantity – 01 ( one ) each and total qty. 04 ( four ) nos.; 3.02 type – b3 & b4; quantity – 01 ( one ) each and total qty. 02 ( two ) nos.; 4 ramp hinge and hinge pin; complete in all respect as per enclosed drg. swl-roro-23 ( sheet no. 1 of 1 ) ; quantity – 10 ( ten ) sets; note: material of hinge pin: en-9, class – iv [ material test certificate for chemical, physical to be provided from nabl accredited laboratory along with supply.; 5 steel weather tight rh doors – as per is standard including door frame; complete in all respect as per enclosed drg. swl-roro-22 ( sheet no. 1 of 1 ) ; 5.01 size: clear opening – 1500 x 600 mm with 4 ( four ) clips; quantity. 01 ( one ) no. 5.02 size: clear opening – 1700 x 600 mm with 3 ( three ) clips; quantity. 01 ( one ) no.