When ordering specify either the sprocket and chain number or the NIBCO valve figure number and size.
订购时，请指定链轮齿和‘链条编号或美国尼伯科阀门型号和通径。
2
When ordering, specify the sprocket number, chain number and length, or the NIBCO valve figure number, size and the chain length.
订购时，请指明链轮型号，链条型号和长度，或美国尼伯科阀门的型号、尺寸和链条长度。
3
Considering the profits of both suppliers and purchasers, we adopt suitable ordering price, ordering batch and delivering frequency in the supply chain management.