天空视频免费观看电视剧,《坐在学霸的鸡上背单词》,欧美人禽性动交异族另类,久久青青无码AV亚洲黑人

Production Base

Zhenghui Company's production base has strong manufacturing capabilities and is an advanced engineering lighting production base in China.Since the main explosion-proof products are explosion-proof and intrinsically safe, the highest explosion-proof grade products, the company is specially equipped with a spectrum analyzer, a distribution photometer, a high-precision image measuring instrument, a protective laboratory, and a microcomputer hydraulic universal testing machine. Layers of control to ensure product quality.

Production Base
System Certification

System Certification

  • ISO Certification: ISO9001, ISO14001, ISO45001

  • CRCC Railway Certification

  • Zhenghui Lighting also has energy-saving certification, coal safety certification, international explosion-proof certification, national explosion-proof certification, CCC/CQC, international EU certification, etc., complete certificates are committed to providing customers with high-quality products and a perfect service system to ensure the safety of people, the environment and property.

ROHS compliance certificate
ROHS compliance certificate
Light environment product certification certificate
Light environment product certification certificate
CCC certification
CCC certification
Blackboard light CQC product certification certificate
Blackboard light CQC product certification certificate
Blackboard light energy-saving certification certificate
Blackboard light energy-saving certification certificate
Classroom lamp CQC product certification certificate
Classroom lamp CQC product certification certificate
Classroom lamp energy-saving certification certificate
Classroom lamp energy-saving certification certificate
主站蜘蛛池模板: 阜平县| 桦甸市| 吉首市| 霍州市| 六枝特区| 冀州市| 巩义市| 沅陵县| 安顺市| 莎车县| 涡阳县| 陈巴尔虎旗| 吴桥县| 台南县| 宁夏| 松江区| 漳州市| 蒙阴县| 信丰县| 汪清县| 额尔古纳市| 财经| 南丹县| 滨州市| 舟山市| 辽中县| 迁安市| 天水市| 江达县| 金堂县| 泗洪县| 定州市| 南乐县| 翁牛特旗| 嘉义市| 罗田县| 正镶白旗| 泾阳县| 郓城县| 眉山市| 东辽县|