Flexible packaging factory purchasing and business which work well?

Flexible packaging factory purchasing and business is not easy, especially for purchasing is very tired, know less than to do business, and is very cumbersome, and others strange eyes, won the trust of the boss, is easy to purchasing personnel with colored eyes to see, always thought that very scene, a rebate, this was very unfair, actually from the working difficulty and intensity on the procurement work never worse than the sales staff, as is bargaining with others, and sales people usually has the support of the engineering and technical personnel, and procurement is affected by the supervision of the quality department, but sales personnel are fair and square on commission, and instead of a procurement commission, but also mysterious person envy kickbacks. Make a purchase, especially small private businesses to purchase, the workload is huge, return is very small, individual ability of exercise is very high. Boss not only want to buy the best of things, the least amount of money and asked that he be given not to spend money on credit back, even back on credit payment should have 1 or 2 months, also think of some way to get to 3 months or 4 months. Do you still take kickbacks? Not afraid to suppliers? And if what's the problem in terms of quality or composite membrane and the like excess inventory, trouble for you. Make you to like as professional engineering and technical personnel, also will arrange, plan as a whole have to line and bargaining ability, to find a way to let the supplier willing to give you on credit, thick skin, will work with suppliers that due account for, and let him continue to deliver to you. And the key question is: what did you do all this, but no one think you have what credit. Generally by people's subjective feeling, will feel difficult to do business. Business in general to proactive, and purchasing in the office would received many business phone call, and when the business products sold by the recommended for purchasing, would then purchase to carefully chosen. No matter what level of people, feel someone's work is very comfortable, do you not know that you are standing on the bridge scenery, the man who looks at it see you upstairs. Purchasing back easily suspected of receiving kickbacks, business is likely to other charges on their backs, in short, everyone has a difficult to read.