nd ; corridor ;any part in the houseFAQ:Q: Are you trading company or manufacturer ?A: We have our own trading company(Zhangjiagang Leader impor & Export Co.,Ltd), and we have our own factory(Zhangjiagang Leader New Construction Material Co.,Ltd).Q: Do you provide samples ? is it free or extra ?A: Yes, we could offer the sample for free charge but do not pay the cost of freight.