巴基斯坦采购需求：肩螺钉、自攻螺钉、翼形螺钉、六角螺栓、马车螺栓、法兰螺栓

I'm looking to purchase self-tapping carbon steel screws and would like to inquire about your shipping capabilities within China. It's essential for me to understand the logistics you offer, as timely delivery is crucial for my operations. Additionally, could you confirm if it's possible to obtain samples of the screws prior to placing a larger order? This would help me assess the quality and suitability for my specific needs. Furthermore, I'd appreciate it if you could provide details on your pricing structure for both small and bulk orders. It would also be great to know about your production lead times and any minimum order quantities that may apply. Understanding these factors will assist me in making an informed decision moving forward. Looking forward to your prompt response!