The quality is the life of Yatai. The corporation continuously perfects Quality Management system.meanwhile,it strengthens the inner quality control and insists on "quality veto"to ensure the genuine satisfaction of customers,Kingyang steel pipe firstly passed ISO9001 international quality system certificate,Quality department - strictly executes the product standard according to the customer's orders,and strictly teses the tubing of finished product.
    Analyze the chemical constituent of materials and finished products accoeding to the standard,strictly control the materials ,test the mechanical property and chemical property of finished products,and do the nondestructive test to eddy current and - ultrasonic in order to ensure the quality of products.The checkers check each finished product according to the standard technology and requirement of productd,if the test of product is qualified,the corporation will give the quality certificate of product to ensure the customers use the products satisfactorily and safely.