With the excellent support from our headquarters in Shanghai, China, we provide high quality products at reasonable prices. Our products include API 6A, 16A, 16C, 6D, along with various components. To complement our quality products, we also offer repair and maintenance services based on our decades of experience. After several years of continuous efforts, we have established a complete quality guarantee system and customer service management system. All executives in the company have over 30 years of experience in petroleum product design and manufacture. Furthermore, we are able to manufacture products based on customer drawings, as well as design and create drawings based on the needs from our clients.We maintain a large inventory of equipment, we have exactly what you need, when you need it. PTWUSA will continue to grow as we constantly search for opportunities to better serve you.