
Qinhuangdao Tongyu Building Materials Co., Ltd. is specializing in fiberglass mesh, fiberglass self adhesive tape, glass wool, rock wool and other building material and thermal insulation materials, plastic products, packaging materials. Our company has been committed to energy-saving environmental protection projects; Always adhere to the "integrity and win-win" for the purpose of the enterprise, "technology and services" for the Founding of the community spirit and the formation of a complete service ...