Qingdao Jolong Metal Products Co., Ltd. Established in 1992, is an enterprise that designs, produces and installs doors and windows made of aluminum, plastic as well as the glass wall. It has passed not only ISO 9001: 2000 attestations in 2004, but national energy-saving products attestation in 2007. It is also the member of Shandong constructional machine association. It is honored as "Renowned Products" "Top 100 enterprises" and "Top 50 in the doors and windows industry" by Shandong construction bureau, "Member Unit of High Quality and Honesty" by the association of Qingdao constructional machine association and association of constructional material in 2005. The products have also been awarded several honors such as "Trust-worthy products" and "Qingdao-renowned enterprises for keeping feom fake productions" for several years.

Jolong Company processes a researching and developing center with a capacity of producing 150, 000 square meters hollow glass, aluminum metal alloy, plastics doors and windows annually. It also boasts a domestic and international forerunning production line as wall as a group of experts and employees who are skillful and industrious. It established several exhibition on halls in various Pars of Shandong Province to meet the needs of all the customers.

Jolong Company keeps on improving and creating in terms of skills and service. It is also famous for spirit of creation and ration as well as high quality of products.

In the spirit of "honest to all, creation and perfection forever", Jolong Company makes people know what is real doors and windows by its contribution of service to the society and up-to-date products with high quality.