Plastic case 1:we are factory,we have best price and quality; 2: Watertight,crushproof,and dust proof , ... . But we have MOQ.3:Modifications can be done for most of products, such as drilling holes, adding or ... protections, but we don't provide the certificates. 5:For some special requirements, please contact us in advance, and ... order. plastic case(SC041),waterproof,crushproof, dust proof ,best price