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Qingdao KRS Perfect Roof Co., Ltd.
Shijiazhuang Guofeng Technology Co.,Ltd
Beijing Beihai Building Material Group Co.,Ltd
Jiangxi Huayuan New Material Co.,Ltd
Rock Wool Insulation,Heat Pipeline
Huamei Energy-Saving Technology Group Co.,Ltd.
Shijiazhuang Beihua Mineralwoll Boarf Co.,LTD
Jotex Composite Materials Co.,Ltd.
Shandong Horizon Building Energy Efficiency Technology Co.,Ltd.
Tangshan Xingbang Plumbing Engineering Equipment Co.,Ltd
Shijiazhuang Power Crown International Corporation
Guda Electronic Equipment(Shanghai)Co.,LTD.
Jinan Bullex Building Material Co., Ltd
ZIBO JUNXU TECHNOLOGY CO.,LTD
Zibo Jiuqiang Refractory Co., Ltd.
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