1. who are we? We are based in Guangdong, China, start from 2019,sell to Oceania(16.00%),North America(15.00%),Central America(15.00%),Eastern Europe(14.00%),Domestic Market(11.00%),Southeast Asia(10.00%),Southern Europe(8.00%),Northern Europe(8.00%),Eastern Asia(6.00%),Western Europe(6.00%),South America(5.00%),Mid East(5.00%),Africa(3.00%),South Asia(1.00%). There are total about 50-100 people in our office. 2. how can we guarantee quality? Always a pre-production sample before mass production; Always final Inspection before shipment; 3.what can you buy from us? Temperature and humidity meter, air quality detector, metal detector 4. why should you buy from us not from other suppliers? Guangzhou qing Mai Electronics Co., LTDis located in Guangzhou, a famous historical and cultural city in Guangdong Province, China. The production base is located in Guangzhou, Guangdong Province, a listed group and R & D and production high- 5. what services can we provide? Accepted Delivery Terms: FOB,DDP; Accepted Payment Currency:USD,CNY; Accepted Payment Type: T/T,PayPal; Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian