NIC 422007 का अर्थ Construction and repair of sewer systems including sewage disposal plants and pumping stations है. यह six-digit Sub-class वह practical final layer है जिसकी सबसे अधिक जरूरत Udyam registration,...
This class includes the construction of distribution lines and related buildings and structures that are integral part of these systems. This class excludes: - project management activities related to civil engineering works, see 7110
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