Spinbath circulation pump material is the Polymer plastic,the lifeting is 35 M,the Spinbath  circulation pump is 260-280 M3/H, Iinstalled capacity is 55KW.It is used for reforming the currently runing DB150 high silicon Pump.It dosen't demand to change power supply system ,changing the pump is OK. The investment is small. At the same time we also developed successfully another kind of circulation pump with lifting 40M, THE CURRENT CAPACITY 340 M3/H, INSTALLED CAPACITY 75kw. The price is only 1/3 as the material 904,nickel and titanium.And this equipment has been used in Weifang Hailong Grop for many years.