Dill collar

This is also a kind of our company's product ,we also use AISI 4145H steel as the raw material of this product,when making we strictly according to standards such as SY/t5144-1997,SY/T5146-1997 and so on to make sure that the products can reach the requirement of API. As we are the manufacture of products we can offer you more competitive price and at the same time we can make sure the proper delivery time all these are advantages we can offer to you. Throgh developing of company we have sell our products to foreigners as the quality is good they all receive good reputation form them now we want to extend our bussiness and set cooperation with clients form all over the world if you have interest in our products please don't heasite to contact with us we will offer you the best service and lowest price and try our best to meet your needs. We sincerely wish we can have a cooperation in the future