Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
Taking the general low temperature resistant resin as an example, the different resin embrittlement temperatures are as follows: PS-30 ℃, PP-35 ℃, ABS-40 ℃, PA-50 ～ -60 ℃, PVC-40 ～ -70 ℃, PE -70 to -100 ° C. The lowest temperature in China…
From 2010 to 2020, China ’s newly added high-speed rail traffic mileage data is about 2800 kilometers per year on average. The temperature in different of the country, and the temperature in Hohhot in winter is even lower than -34 °. When using screen…
