1.Quaity metal structure ,quality ABS plastic .
2, the national standard, the moisture-proof, anti-corrosion, anti insect chemical treatment;
3, a solid structure design, consistent with the use of the relevant furniture safety standards;
4, after rolling casters test 100000 times, reached the European SGS international standard;
5. The air lever passes through the 100000 pressure reciprocating test to reach the European SGS international standard;
6, the five-star foot pressure test, through the 300KG test standards.