SUNLP LIMITED. was founded in November 2011. The cooperation production base is located in Baodi, Tianjin, and office in Hangzhou. The company's workshop covers 4, 000 square meters, equipped with professional precision cutting machines and automated assembly lines. The factory has built a full process technological system covering raw material processing, component manufacturing, assembly and debugging, to quality inspection, supported by 50 skilled employees. With over a decade of expertise, we maintain a monthly production capacity of 4,000 sets of drum sets, crafted with premium materials like birch and reinforced steel to balance durability with rich, resonant sound, suitable for both beginners and professionals. Our customer network more than 20 countries, with key markets in North America, Europe, and Southeast Asia. Our products meet rigorous international standards, including USURN certification, ASTMF963, CPSIA, and CA65, passing tests for fire resistance, drop resistance, drum stool load-bearing, and pedal lifespan. We enforce a triple QC system overseen by a 12 member team with 8 years of experience: raw materials undergo strict pre use checks; core components likepedals get 100% pre packaging inspections; final products are randomly sampled pre shipment.