订货须知
Puechasing instruction
1.订货时，需详细写清型号，材料，规格，数量和供货期限。
Advise the type,material,specification,quantities and delivery time when purchasing.
2.如用户有特殊要求，可为用户进行设计或改性。
If customers have the special request,we can design and improve the type according to custoners requirement.
3.对机械密封件使用还不熟悉的用户，请提供设备名称，使用介质，温度，压力，轴径，转速等参数，我公司可代为选型。
If customers are not familiar with how to use mechanical seal,please advise us name of equipment, medium, temperature, pressure,shaft dimension,rotary speed ,etc. We can choose the type for you.
订购机封前请联系卖家，因为机封材质配对需求不一样，导致价格不能统一