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Hainan Qingtuo Technology Co., Ltd. Hainan Qingtuo Technology Co., Ltd. was established in1996. As a manufacturer with 25 years experienced in high-temperature alloy products, we have a professional service team to provide high standard of technical support, timely and qualified delivery, customs clearance assistance, and reliable after-sales services, etc. After 25 years of development, Qingtuo has now grown up to over 200 employees, half of whom have worked in high-temperature alloy industry for more than 10 years. https://www.alloy-ronsco.com