文昌铁艺防盗护栏 隔离防护栏 东莞厂区小区学校围栏 Wenchang iron anti-theft guardrail isolation fence Dongguan factory district school fence 厂区锌钢护栏X点: Advantages of zinc steel guardrail in plant area: 基材采用纯热镀锌钢管 坚实耐用。 The base material is pure hot-dip galvanized steel pipe, which is solid and durable. 由里到外防止钢材基材生锈。 After electrostatic spraying polyester color powder coating, a permanent coating is formed. 无论何种环境,锌钢护栏不会生锈。 No matter what the environment, zinc steel guardrail will not rust