fix: 广东接口导入评标材料，规格型号问题

web/building_saas/standard_interface/import/guangdong_zhongshan.js

@@ -162,7 +162,7 @@ INTERFACE_IMPORT = (() => {
         seq: b._Code,
         code: b._Number,
         name: b._Name,
-        specs: b.Specification,
+        specs: b._Specification,
         unit: b._Unit,
         market_price: b._Price,
         quantity: b._Quantity,