Qingdao Sinoland International Trade Co., Ltd. Specialized in Aluminum profiles for windows&doors,Heat sinks for inverters and LED lights,Die castings,car&truck wheel rims with high quality and competitive price more than five years.It is Customized&OEM as your own design with our 500,00 ton Annual capacity as International Standard.Over the years,the products have been exported to Canada,Australia,America and some other countries. Integrity, Efficiency and Win-Win is our Enterprise tenet. Welcome more international and domestic customers together with our company jointly establish a good business relationship!