Qingdao heli chemical Co.,Ltd is a professional manufacturer of phenolic resin,which has been 30 years history since it's started in 1983. we manufacture phenolic resin for refractory material ,foundry(coated sand), and friction material.our annual output is 20,000.00tons Our company is located in Qingdao,China.Qingdao is one of the most largest ports in China.It's convenient to delivery the products. Our company independent research and development of top-grade aluminum carbon ...