... :heat pipe heat exchanger 2.making standard:GB/T14296-93 3.ISO9001 You know our heat exchanger: Famous brand cooperator: Uflex ... , aluminum, carbon, stainless steel: 201, 304, 316, 316L, Steel tube specification: 21*2.0, 22*2.0, 18*2.0, 25 ... *2.0, and so on. Steel tape specification: 10*0.3, 12*0.3, 15*0.3 and so on. (Optional), Customized specifications are ...