procurement of flexible circular neoprene rubber bellows for g.t. delta run of 21kv bus duct installed at 1x500mw unit at sgtps mppgcl birsinghpur as per attached tender schedule procurement of flexible circular neoprene rubber bellows for g.t. delta run of 21kv bus duct installed at 1x500mw unit at sgtps mppgcl birsinghpur as per attached tender schedule , watt transducers , flexible circular rubber bellows having following technical specifications:- • dia.: 995mm, length: 450mm • material : neoprene rubber • fabric reinforcement : one ply of high strength nylon fabric • no. of arch & type of arch: three / open • shore hardness:65±5°sh.a • temp. ( max. ) : 80°c • a / w clamps • h / wsa / w clamps ( ss304 ) application : delta run of bhel make gt