We have domestic and foreign business, and sometimes customers often ask for samples to bid or test. We will try our best to meet customer requirements and help customers win orders. Under normal circumstances, if the number of samples is small, we will provide small samples for free, and express them to customers, and the cost of express delivery shall be borne by the customers. Generally, it is not practical to send finished products such as acoustic mineral fiber ceiling board, glass wool board, rock wool board, acoustic fiberglass ceiling, because the volume is relatively large and easy to damage, so we generally send small samples to customers, the approximate size is 15-30cm each . This is a question about sample size.

Another problem is that some customers, especially foreign customers, are unwilling to bear the cost of express delivery. After all, it still costs 50 to 100 US dollars to send samples abroad. This fee varies according to the number of samples and the country to which they are sent. This part can be discussed carefully.

When confirming samples, please provide detailed product specifications as much as possible to ensure that the received samples are expected to meet the expectations, including which items to be tested and which standards are met, and customers are also requested to provide this information in a timely manner.