diff --git a/web/calculators/asphalt_domestic.py b/web/calculators/asphalt_domestic.py
index 3a67d52..20f5f31 100644
--- a/web/calculators/asphalt_domestic.py
+++ b/web/calculators/asphalt_domestic.py
@@ -1,12 +1,9 @@
-import datetime
-
 from sqlalchemy import func
 
-from calculators import Calculator, Helper
+from calculators import Calculator
+from commons.models.data_network import DataNetwork
 from commons.models.fujian_survey import FujianSurvey
 
-from commons.models.asphalt_domestic import AsphaltDomestic
-
 
 class AsphaltDomesticCalculator(Calculator):
     name = "国产沥青"
@@ -19,33 +16,11 @@ class AsphaltDomesticCalculator(Calculator):
         self.month = month
 
     def _get_network_price(self):
-        name_in = (
-            '浙江省—镇海炼化(70#,90#,A级)',
-            '福建省—联合石化(70#,A级)',
-            '广东省—茂名石化(70#,90#,A级)',
-            '广东省—中油高富(70#,90#,A级)华南公司',
-        )
-        last_month_year, last_month = Helper.get_last_month(self.year, self.month)
-
-        end_date = AsphaltDomestic.get_last_date_from(date=datetime.date(last_month_year, last_month, 26))
-        start_date = AsphaltDomestic.get_last_date_from(date=datetime.date(self.year, self.month, 25))
-
-        previous_items = AsphaltDomestic.get_items(date=end_date, name_in=name_in)
-        previous_prices = {material: float(price or 0) for material, price in previous_items}
-
-        current_items = AsphaltDomestic.get_items(date=start_date, name_in=name_in)
-        current_prices = {material: float(price or 0) for material, price in current_items}
-
-        fluctuating_a = current_prices.get(name_in[0], 0) - previous_prices.get(name_in[0], 0)
-        fluctuating_b = current_prices.get(name_in[1], 0) - previous_prices.get(name_in[1], 0)
-        fluctuating_c = current_prices.get(name_in[2], 0) - previous_prices.get(name_in[2], 0)
-        fluctuating_d = current_prices.get(name_in[3], 0) - previous_prices.get(name_in[3], 0)
-
-        previous_price = int(getattr(self.previous_prices, 'price_network', 0))
-
-        price = previous_price + 0.4 * fluctuating_a + 0.2 * (fluctuating_b + fluctuating_c + fluctuating_d)
+        query = DataNetwork.get_query(self.year, self.month, name='石油沥青', spec='国产')
+        data = query.first()
+        price = data.price if data else 0
+        previous_price = int(getattr(self.previous_prices, 'price_network', price))
         fluctuating = price - previous_price
-
         return price, fluctuating
 
     def _get_survey_price(self):
diff --git a/web/commons/models/data_network.py b/web/commons/models/data_network.py
new file mode 100644
index 0000000..982556c
--- /dev/null
+++ b/web/commons/models/data_network.py
@@ -0,0 +1,56 @@
+import datetime
+
+from dateutil.relativedelta import relativedelta
+from sqlalchemy import Column, Integer, String, Date, UniqueConstraint, Numeric, Text
+
+from commons.models.mixin.base import BaseModelMixin
+from commons.models.model import Model
+from core.extensions import db
+
+
+class DataNetwork(db.Model,  Model, BaseModelMixin):
+    __tablename__ = 'DATA_NETWORK'
+
+    id = Column('ID', Integer, primary_key=True)
+    material_id = Column('MATERIAL_ID', String(128), comment='')
+    spec = Column('SPEC', String(128), comment='')
+    unit = Column('UNIT', String(128), comment='')
+    brand = Column('BRAND', String(128), comment='')
+    name = Column('NAME', String(128), comment='')
+    price = Column('PRICE', Numeric(16, 4), comment='')
+    source = Column('SOURCE', String(128), comment='')
+    remark = Column('REMARK', Text, comment='')
+    date = Column('DATE', Date, comment='')
+    region = Column('REGION', String(64), comment='')
+
+    __table_args__ = (
+        UniqueConstraint(name, spec, region, date, name='Idx_key'),
+        {'comment': '网络数据'},
+    )
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+    def find_by_key(self):
+        query = DataNetwork.query
+        query = query.filter(DataNetwork.name == self.name)
+        query = query.filter(DataNetwork.spec == self.spec)
+        query = query.filter(DataNetwork.region == self.region)
+        query = query.filter(DataNetwork.date == self.date)
+        result = query.one_or_none()
+        return result
+
+    @classmethod
+    def get_query(cls, year, month, name, spec, region="福州"):
+        start_date = datetime.date(year, month, 1)
+        end_date = start_date + relativedelta(months=1)
+        query = cls.query
+        query = query.filter(cls.date >= start_date)
+        query = query.filter(cls.date < end_date)
+        if name:
+            query = query.filter(cls.name == name)
+        if spec:
+            query = query.filter(cls.spec.like(f'%{spec}%'))
+        if region:
+            query = query.filter(cls.region.like(f'%{region}%'))
+        return query
diff --git a/web/commons/models/material_task.py b/web/commons/models/material_task.py
index a1e5350..48ca221 100644
--- a/web/commons/models/material_task.py
+++ b/web/commons/models/material_task.py
@@ -6,7 +6,7 @@ from commons.models.model import Model
 from core.extensions import db
 
 
-class MaterialTask(db.Model, Model, OperationTrackMixin, Model):
+class MaterialTask(db.Model, Model, OperationTrackMixin):
     id = Column('ID', Integer, primary_key=True)
     name = Column('NAME', String(128), default='', comment='任务名称')
     status = Column('STATUS', Integer, default=0, comment='状态（待采集、已采集、采集中）')