What are the requirements for drilling tools for drilling?

October 26, 2021

The bit is directly broken part of the rock, its shape, structure, material, processing technology, etc. directly affect the crushing effect and the life of the bit. The drilling requirements for the drill bit are:

Shape reasonable structure, high drilling speed, long life, wear resistance, sufficient mechanical strength, easy to insert the hard alloy, have good powder discharge performance, manufacture, easy disassembly and grinding, and low cost.

Stretch Film

Stretch wrap film roll is widely used in cargo pallet packing, has high tensile strength, puncture resistance, tear resistance. With good re-stretch strength (500% ) and autohesion, stretch wrap could pack goods into a whole without collape during transportation, ensuring waterproof, dustproof, breakage-proof and good security. Wrapping film can be devided into Manual pe stretch film, machine wrapping film and Pre-stretch plastic film. Our pallet wrap used LDPE and LLDPE as raw materials, which importing from USA, like Exxonmobil and other petrochemical company. Pallet wrap has many different size, could make customs wrap packing.
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Dongguan Yalan Packing Materials Co., Ltd. , https://www.yalanpack.com