factory gate: 1.ISO9001&14001,CE 2.Sample, OEM&ODM are available 3.Alarm function, Infrared anti-bump ... 4.10 years used life Model:factory gate Material:Alloy-6063, ... 5days,20GP:10-18daysWidely useful for:Government, company, factory, industrial, mining enterprises, institutions, colleges, stadium and ... your company. Thanks. the best quality factory gate