Zamil Steel Buildings India [P] Ltd. Offers Panel Related Accessories. Zamil Steel Buildings India [P] Ltd. Is the designer, manufacturer and supplier of pre-engineered steel buildings [PEB] following ISO 9001:2000 procedures. The range of Panel Related Accessories includes downspouts, eave gutters, curved eaves, wall flashings and trims. The Panel Related Accessories are made using the base metal featuring substrate coating, thickness, paint finish and colour.