国产大片一区二区_男男GAY亚洲帅哥在线_欧美一区二区高清在线观看_日日操影院_免费久草_狠狠操综合

The series pumps are designed by our company on the basis of IS series and ISG series pump, adopting the modern most excellent hydraulic model and using lengthening shaft motor for direct-coupled configuration. The shaft seals use quality mechanical seal. It features compact structure, small space required, low noise, no leakage, easy installation and maintenance. The ISZ pump can be used for transporting medium at temperature below 80℃, the medium temperature of the IRZ series up to 130℃. The main parts of the pump are generally made of grey cast iron and high-grade carbon steel, and can be used copper or stainless steel to meet the requirements of different medium.