This is Nayereh Azad from CCG Company a contractor of industrial projects in Iran. We are planning to buy some gear belt-pulley with following specification for one of our international projects which is a residential one with more than 20,000 blocks. Generally we are seeking for some economic product with satisfied quality because of the high quantity of our requirements. Please kindly introduce me the appropriate products and quote about them. withdrawal gear belt-pulley, 1/2 inch, nominal diameter 15 mm: 216,000 pcswithdrawal gear belt-pulley, 3/4 inch, nominal diameter 20 mm: 30,000 pcsI appreciate your response in advance.