repair maintenance of machine for the year 2023-24. supplying, conjoining including laying of high quality water tight hdpe floating boom barrier in sahibi river at dhansa and chander vihar sites under jurisdiction of cd-i. , supplying, conjoining including laying of high quality water tight hdpe floating boom barrier in sahibi river at dhansa and chander vihar under the jurisdiction of cd-i wherever required by providing and connecting following material. ( length of single trash boom - 120 mtr x 2 sites ) hdpe floating boom barrier ( size - 1.7 mtr ) sloted angle of size 40x40x5mm m.s. jaali of size as required. nut, bolt & washer of size as required. anchor bolt ( hook type - 10mm ) nylon rope of size - 10mm ( minimum )