Because copper nickel pipe is not only sturdier but more flexible than carbon steel pipe It is suitable for increasing the size or length of the pipe. Also it costs less to maintain compared to carbon steel pipe, which lasts shorter and has to be fixed often. So it may be more costly compared to other products at first, but in the long term, it is more economical. HANSAE is the company that manufactures and exports these pipes. HANSAE is recognized internationally for meeting the deadline precisely at reasonable price. HANSAE is recognized internationally for meeting the deadline precisely at reasonable price. Also, HANSAE uses Korean raw material up to 6 inches, making it more economical than European products such as Germany and with higher quality than the Chinese. HANSAE operates a 24-hour customer service to instantaneously communicate with foreign companies from different time zones. HANSAE Inc. is waiting for you.