Tong Lung Metal Industry Co., Ltd.--Variety of locksets, overhead door closers
Tong Lung Metal Industry Co., Ltd., Taiwan's No.1 lock maker, is promoting a family of overhead door closers, which comes in standard-arm type and parallel-arm type. By power size classified based on the British EN 1154 standard, these closers come in grade one to grade five. This family is non-... 詳全文