诸位大侠，由于近期我公司要集中采购一批固井工具，公司在东南亚，想从国内采购，数量较大，谁能帮忙提供一下下面固井工具的国内报价呀，以美元为单位的，万分感谢！
No. Cost Element Unit Rate (USD)
No. Cost Element Unit Rate (USD)
1 18-5/8” bow spring centralizers
2 18-5/8” stop collars
3 18-5/8” float collar and float shoe
4 18-5/8” wiper plugs
5 16” Bow spring centralizers
6 16” Stop collars
7 16” Float collar and float shoe (flush joint)
8 16” wiper plugs
9 13-3/8” bow spring centralizers
10 13-3/8” stop collars
11 13-3/8” float collar and float shoe
12 13-3/8” wiper plugs
13 9-5/8” rigid centralizers
14 9-5/8” stop collars
15 9-5/8” float collar and float shoe
16 9-5/8” wiper plugs
17 9-5/8” auto fill collar
18 7” rigid centralizers
19 7” stop collars
20 7” float collar and float shoe
21 7” wiper plugs
22 7” auto fill collar
22 5-1/2” roller centralizers
23 5-1/2” float shoe
24 5-1/2” composite engineered polymer centralizers
25 5-1/2” stop collars (1set of 2)
26 5-1/2” L-80 carbon steel or equivalent Bull-Plug type Guide Shoe
27 4-1/2” composite engineered polymer centralizers
28 4-1/2” stop collars (1set of 2)
29 4-1/2” L-80 carbon steel or equivalent Bull-Plug type Guide Shoe
30 4-1/2” rigid centralizers
31 4-1/2” roller centralizers
32 4-1/2” float shoe
33 Thread lock compound
34 Thread compound
