We're committed to furnishing easy,time-saving and money-saving one-stop purchasing support of consumer for 200mm Diamond Geological Core Bits, FCJ Positive and negative Thread Coupler , Anchor Bolts , Left Thread Coupler ,Mechanical Wrench . Our tenet is "Reasonable prices, economical production time and very best service" We hope to cooperate with much more shoppers for mutual enhancement and benefits. The product will supply to all over the world, such as Europe, America, Australia,Porto, Zambia,Greenland, San Francisco.Taking the core concept of "to be the Responsible". We will redound up on society for high quality products and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.