Since 2000, and gas appliances, factory set to accompany a large number of sales to the United States WAL-MART Company. produced by SD-E4 electronic ignition pulse by national patent.

• 自2000年以来，和燃气用具厂陪套大量销售给美国WAL-MART公司。公司生产的SD-E4电子脉冲点火器获国家专利。