Diamond
Compact
Silver
BSS Tec International Corporation
Cardolite
DAISHIN KAKO CO., LTD
Green Friction
Hebei NewTime Foundation Fire Insulation Materials Manufacturing Co., Ltd.
Jiangxi Fengzhu New Material Technology Co.,Ltd
Nantong Xinyuan Special Fiber Co., Ltd.
Otsuka Chemical Co., Ltd.
Qingdao Kropfmuehl Graphite Co. Ltd.
Specialty Lubricants Corporation
Sterling Fibers
Tribotecc GmbH
ZHONG BANG SUPER HARD TOOLS CO., LTD.