SBT series slide way draught machine design is advanced, fabrication is excellent, accuracy is high, mass is easy to be ideal plotting of projectplanner machinery.
SBT系列导轨绘图桌设计先进,制造精良,精度高、质量好,是工程设计人员的理想绘图机械。
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Floor heating tube is a pipe with special application domain. The author compares different property of different pipe, states that it is important to select heating tube material for projectplanner.