We wanr to buy complete set of ton cylinders,after that to r

We wanr to buy complete set of ton cylinders,after that to return ton cylindersfor filling.We want also to rent ISOTank.Therefore we need the prices for cleare gas and ton cylinders.And also ISOTank lease term.客户的意思是不是自己要买气缸.还有要租用ISO TANK .所以希望我这边给他报气缸的价格,还有单独气体的价格（就是不含包装）,ISO TANK租赁期.ton cylinders 是长什么样的呀,ISO Tank 有装气体的么,我们都是装液体的.