Qingdao Yuanding Group Co.,Ltd.(QYD) is the largest glass line annealing lehr roller supplier in the world. It has more than 80% Chinese market share and have long term cooperation relationship with most of international glass manufacturing giants and engineering companies.
QYD could supply one-stop service to all kinds of rollers used in glass annealing lehr, from LOR, A zone to F zone. And the rollers including steel roller, fiber roller, metal donut roller, castellated roller, carbon ring roller, composite ring roller etc.
In glass annealing lehr, composite ring roller generally be used in F zone.