In my pvc thread country's current valve market, in addition to low pressure valves reaching a level acceptable to the international market, high-pressure valves still need to rely on imports. Under the continuous optimistic situation of the macro economy, most of the valve industry's production and sales targets have maintained a relatively rapid increase, but due to prices and influences, industry sales expenditures and profits have dropped significantly compared with the same period last year. With the recovery of the world economy, the import and export of valve products in my country has...