已经按照客人要求发了报价单，客人的回复有点看不懂

Dear Sir




Thanks for your details.





Any price negotiation ,





As we have two granite factories in Hosur,Tamil Nadu,India ,we can import your granite slabs and can do the business,





your quoted price will be work out for us with delivery at our factory





Can you supply on Credit Basis,If you are interested,you can come & see our factories and also we will come to your factory to finalise the deal,



请问这要怎么回复呢？之前已经按照客人要求发了客人需要的尺寸的报价单。对方貌似是进出口同时在做，外贸邦也有该公司的进口数据，其中很多都是和中国人合作的。
外贸菜鸟。麻烦大家了