尼日利亚采购需求：Api 6a 节流阀、Api 6a 平板闸阀、保险杠震击器、Cameron Fc 闸阀手册、套管刷、节流压井管汇

I'm looking for a detailed quote for several types of double acting hydro-mechanical drilling jars. Specifically, I need four pieces of the larger size, four pieces of the mid-size, and two pieces of the smaller size. Please include your pricing, lead times, and any relevant specifications or options that might be available for these tools. If you have any suggestions or alternatives, feel free to share that info as well. Thanks!