-If you want to place a large order for wholesale, please feel free to contact us.
-If you need to order multiple items, pleases let us know first. We can offer you some discount.
Diamond composite sheet (PDC) is under the condition of high temperature, the artificial diamond and hard alloy prepared special super hard material, it not only has the advantages of high hardness, wear resistance of diamond hard alloy, but also have a strong impact resistance, a large blade, it can greatly improve the blade bit’s working efficiency, is ideal for drilling in medium hard rock and hard rock; the main categories of diamond composite piece drill bit manufactured by our company are diamond, diamond drill bit bolt concave( diamond core drill), diamond core drills, diamond blade drill, diamond reamer; at present , the PDC bit our company produced spread our whole country, coal oil drilling, geological exploration, water conservancy and hydropower, railway tunnel, highway construction and other industries.
-We accept the following payment methods:
-Credit Card, VISA, Bank to Bank Wire Transfers,PayPal, Western Union and so on.
-All payments made on AliExpress are processed by Alipay and PayPal.
-Please contact us before leaving negative or neutral feedback. We will work with you to solve any problem
-If you want to place a large order for wholesale, please feel free to contact us.
-If you need to order multiple items, pleases let us know first. We can offer you some discount.
-As a responsible seller, we guarantee free exchange or full refund, if item is defective.
-Valid period is 30 days from the day of placing order, so please inform us about defect in advance once you find it.
-We will refund you if the item is not as described or damaged in transportation.
-You can return it within 7 days after receipt.But shipping fee is not refundable.The item should be returned to us in its original condition by mail with tracking number.
-Any question you would like to ask ,welcome to WhatsApp+8613316686315 to me.
-1 years manufacture warranty:
We will offer your free new parts or accessories with free shipping during 3 months after your purchase.
We will offer your free new parts or accessories but you need to pay for some shipping fee if more than 3 months less than 1 year .
-Defective problem has to be submitted within 7 business days after product is delivered;
-Shipping damage has to be submitted within 5 business days after product is delivered.
-Please show us photo or video if happens problems on products.
How fast can I get my package?
1. DHL: Southeast Asia 3-4 days / others 3-5/days.
2. FedEx: Southeast Asia 3 days / others 4-6/days.
3. UPS: Southeast Asia 3-4 days / others 4-6/days.
4. TNT: Southeast Asia 3-4 days / others 4-6/days.
-Please pay more attention to your order address which MUST MATCH your shipping address.
-Shipping will be worldwide via: e-Packet / China post air mail/ CDEK / ARAMEX/ EMS / UPS / FEDEX / DHL / TNT.
-Remote area may cause extra shipping fee.
-Please check items when delivered, if damaged, please kindly accept it and contact us immediately.We will make a confirmation and resend you a new one.
