update

db/index.js

@@ -56,6 +56,7 @@ const PlantPlan = require('./models/letianPlantPlan');
 const ProductPlant = require('./models/letianProductPlant');
 const ProductPre = require('./models/letianProductPre');
 const ProductDeep = require('./models/letianProductDeep');
+const ProductLt = require('./models/letianProductLt');
 const ProTraceCode = require('./models/letianProTraceCode');
 
 const Device = require('./models/collectDevice');
@@ -143,6 +144,7 @@ global.DB = {
 
     SuppFact,
     TechProcess,
+    ProductLt,
 }