Looking for gearbox of electric wire rope hoist from India

Hi - Can you supply gearbox for the attached crane model I have ?

RAMHOIST: May I know what's the quantity you need? thanks

Customer: I need just one gearbox.

RAMHOIST: regret we can not supply one gearbox but we can supply one hoist, thanks

Customer: What is the cost of the hoist ?

RAMHOIST: need to know the capacity and lifting height, thanks

Customer: 5 ton and 20 meters 

technical brochure: http://ramhoist.com/upfile/201810/2018100634566481.pdf

RAMHOIST: How much is CD1-05S ?

Also how do I confirm the gear ratios and the specs of the gears and shaft, material used etc? 

我如何确认齿轮比以及齿轮和轴的规格、使用的材料等？

type:  CD1-05S

(i wrote wrong type in the previous email)

I don’t know the gear ratio. The material is made of No. 45 steel, which has been heat treated.