How to protect pre gi pipes from rusting
1. weld seam must be zinc coating
2. surface must be done passivation qualified
3.storage in inner warehouse & keeping dry
4.before & after loading pipes, it shall be dry , must put 6 bags of desiccant inside
1. weld seam must be zinc coating
2. surface must be done passivation qualified
3.storage in inner warehouse & keeping dry
4.before & after loading pipes, it shall be dry , must put 6 bags of desiccant inside
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