尤物视频污,99热99热99超碰,精品久久久久女少妇,少妇精品无码,日B视屏久久香色,亚洲美女午夜福利av,国产美女被操,国产九九精品,国产久久色情

China Drill bit - China Supplier
China Drill bit - China Supplier

Drill bit

Price:Negotiable
Industry Category: Hardware & Tools/Cutting Power Tools/Drill Bits
Product Category:
Brand:
Spec:


Contact Info
  • Add:孝感市孝南區(qū)新鋪鎮(zhèn)工業(yè)園區(qū), Zip: 432300
  • Contact: 劉總
  • Tel:0712-2555799
  • Email:hengdong588@163.com

Other Products

Description
Additional Information

High-strength steel, specially treated surface, used for the tip of grounding rods, serving as the drilling body for ground penetration.

Product Introduction

1. The assembly consists of a grounding rod, drive head, connector, and drill bit. The grounding rod utilizes a continuous electrolytic plating process to coat copper ions onto the pre-treated steel core surface, forming a dense molecular bond between copper and steel. This results in an alloy product that combines the mechanical strength of steel with high electrical conductivity and strong corrosion resistance.
2. Surface quality: The copper layer is smooth and even, without significant defects or other harmful irregular edges.
3. Coating thickness: Coating thickness ≥0.254mm; Dimensions: Nominal diameter deviation ≤±0.10mm.
4. Tensile strength: The tensile strength of copper-clad steel is greater than 300MPa, with the fracture location being more than 25.4mm from the fixture.
5. Bending performance: After bending tests, the copper layer shows no cracks, fissures, pits, or other defects that could impair corrosion resistance.
6. Resistivity and conductivity: Resistivity ≤8.62×10?? Ω·m, conductivity ≥20%.
7. Thermal stability coefficient: Thermal stability coefficient C ≥119.
8. Electrical-corrosion performance: After current-temperature cycle tests, freeze-thaw tests, neutral salt spray tests, and fault current impact tests, the final resistance increase is less than 50%. During intermediate stages, resistance increase in each test phase is less than 15%. After testing, the surface shows no cracks, fissures, pits, bubbles, or other defects that could impair corrosion resistance.
9. Grounding electrodes can be connected to the required length and driven up to 30 meters underground without being affected by climatic conditions (such as frost and drought) that could increase soil resistivity and grounding resistance.
10. Soil applicability: Suitable for any harsh soil environments, including mountains, rocky terrain, and highly acidic or alkaline conditions.
Product features: Dense bimetallic structure, excellent mechanical strength, high electrical conductivity, strong corrosion resistance, convenient installation without excavation, and adaptability to any harsh soil environment for lightning protection grounding applications.

Industry Category Hardware & Tools/Cutting Power Tools/Drill Bits
Product Category
Brand:
Spec:
Stock:
Origin:
About Toocle.com - Partner Programme - Old Version
Copyright ? Toocle.com. All Rights Reserved.
(浙)-經(jīng)營性-2023-0192
ChatGlobal Chat Now 凤翔县| 淅川县| 苍梧县| 庆云县| 灵璧县| 鸡泽县| 离岛区| 四平市| 修文县| 轮台县| 科技| 即墨市| 达州市| 博乐市| 马公市| 巢湖市| 大安市| 砀山县| 金乡县| 潮安县| 平定县| 威宁| 土默特左旗| 遵化市| 衡阳县| 获嘉县| 嘉兴市| 临夏县| 百色市| 吉木乃县| 湟源县| 韶关市| 水富县| 日喀则市| 怀柔区| 新田县| 绥滨县| 会同县| 北流市| 镇巴县| 开江县|