tender for item description/ heading , labor charges for handling and lifting of 6 dia ms pipe approx 150 ft (unskilled 5@ 346 x 4shift) , cost/ charges for 6 ms flange fitting and welding with 6 ms pipe double layer, , labor charges for manually loading, unloading of 6 dia ms pipe with welded flange, bend short pieces et manually from workshop to site (unskilled 5@346 x 4shift) , making ms bend 8 no. 6 short pieces 4 no, 6 taper pieces 4no , supply and fitting of 8 ms flanges , supply and fitting of ms bolts nuts and washers (different sizes) , supply and fitting of r.l. cloth , oxygen cylinder , manually laying and jointing 6ms pipe approx 150 feet , total impact of gst for the purpose of ctc