-Steel rebar reinforced concrete must be in new, never used it before. There are phiosaat. There are no rust pit Islands. Not really for oil There are no cracks and have a certificate of quality from the manufacturer and must have the following properties:
- Reinforcing steel A new rebar That has not been used before with no rust, clean skin pores island. Not oily No cracks and show a certificate from the manufacturers. And must have the following properties.
- Steel in concrete is a new bar that was never used before. The skin is clean, no สนิมขุม Island, no grease, no cracks. A certificate and quality from the manufacturer, and has the following features.