印度尼西亚采购需求：钥匙扣、个性化金属钥匙扣、定制金属钥匙扣、金属钥匙扣、定制金属钥匙扣、空白金属钥匙扣

I'm interested in ordering a variety of custom-designed pins and would like to gather some information before proceeding. Could you please let me know the process for requesting samples? I'm particularly keen to understand the associated costs and any specific requirements for this. Additionally, it would be helpful to know the estimated shipping time for these samples to Jakarta, Indonesia. Any details regarding shipping options would also be appreciated. Looking forward to your prompt response. Thanks!