JIS STK500 Galvanized Steel Pipes

JIS STK500 galvanized steel pipes：
STK500 is a Japanese material brand, and its mechanical properties are as follows: tensile strength N/mm 500 yield N/mm 355.
Japanese industrial standard for carbon steel tubes used in earthwork, construction, scaffolding, piles, and other installations.
Hot-dipped galvanized :
Durability: in a suburban environment, the standard galvanized rustproof thickness can be maintained for more than 50 years without repair;In urban or offshore areas, the standard hot dip galvanized rust barrier can be maintained for 20 years without repair;

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