Manual and Pneumatic Sluice Valves Available, In Stock, How Much, Wholesaler [Nantong Helu Building Materials Technology Co., Ltd.] Nantong Helu Building Materials Technology Co., Ltd. is a professional manufacturer and processor of dust collectors, granule and powder conveying systems, homogenization systems, air conveying chute systems, standard sections, tee valves, tee slides, distribution valves, electro-hydraulic tee valves, four-way valves, expansion joints, butterfly valves, CP valves, louver valves, plate valves, and various valve specifications. The company boasts a comprehensive and scientific quality management system. Nantong Helu Building Materials Technology Co., Ltd. is recognized for its integrity, strength, and product quality in the industry. Welcome friends from all walks of life to visit, guide, and engage in business negotiations. Research, development, and technical services in the field of building materials technology; sales of building materials machinery, environmental protection equipment, dust removal equipment, conveying equipment, hoisting machines, port equipment, wire rope, power equipment; and import and export of various commodities.