求翻译：海关对出口商为制造出口产品而进口的原材料征收关税而在产品出口时将关税退回会束缚出口商的资金，因此，阻碍对外贸易的发展。是什么意思？

Customs exporters for the manufacture of export products and import tariffs for raw materials in exports will be duty bound to return exporter of capital, therefore, hinder the development of foreign trade.

Customs to exporters for manufacturing export products and raw materials imported for the collection of customs duties and tariffs will be refunded at time of export products exporters will bind the funds, thereby hampering the development of foreign trade.

But the customs for make raw material collection customs duty to the exporter which the export product imports when the product exportation returns the customs duty can fetter exporter the fund, therefore, hindrance foreign trade development.

Customs of exporters for the manufacture of export products and import tariffs on raw materials and at the time of export tariffs bound exporters return funds, therefore, hinder the development of foreign trade.

Customs of exporters for the manufacture of export products and import tariffs on raw materials and at the time of export tariffs bound exporters return funds, therefore, hinder the development of foreign trade.