国产成人三级在线视频网站观看|久久久久久人妻一区二区三区|亚洲国产精品成人精品无码区在线|99精品国产综合久久久久五月天

用微信掃一掃

二維碼
Sinoyin Solars Co.,Ltd.
Mail
15062445093@163.com
Tel
+86-512-88876960
ABOUT CASE QUALITY PRODUCTION PROCESS TEST SERVICE FAQ NEWS
MATERIAL

SINOYIN QUALITY

Material Equipment

Quality Control from the source- Copper Tubes

*Copper tube adopts TP2 copper oxidation resistance, corrosion resistance is strong.
TP2 copper excellent welding performance, welding node good ductility;
*Copper adopt domestic brand copper suppliers, to ensure the quality of copper;
*Copper wall thickness are above 0.6 mm to ensure the sealing of copper pipe flow;

Solar Industry Disclose
1, In order to reduce costs, some manufacturers use inferior copper pipe instead of high quality copper pipe;
2, In order to reduce costs, some factory products are inconsistent with the contract requirements, when mass production, some factories changecollectors inside diameter and wall thickness of the copper pipe;
Solution: sample testing ( random testingq when massProduction )

Quality Control from the source - Aluminum Alloy Frame
* 6063 - T5 aluminum hou resistance is strong, high mechanical strength, is the guarantee of flat collector sturdy and durable ;
* Aluminum surface oxidation treatment,surface generates a layer of protective film layer, to ensure that the plate collector to adapt to the harsh outdoor environment;
* Our aluminum alloy frame from domestic brand aluminum suppliers.

Quality Control from the source - Absorber Material
Absorber is used with imported Germany high efficiency bul titanium, it is of high absorbility, low emissvity, α≥95%, ε≤5%, stable performance.

Quality Control from the source - Absorber Material
The material is EPDM with the good & reliable famous brand supplier,it is of Anti High temperature, weather resistance, uvioresistant,can be more than 20 years working life.

Quality Control from the source -Glass cover
It is used 3.2mm low iron braided tempered glass, the light transmittance can upto 91.2%, also the matted finish on the glass can prevent the second reflex, more important, the hardness of the tempered glass is 5 times harder than normal glass.

Quality control from the source - thermal insulation material
*Insulating materials use glass fiber cotton and stearic foam polyurethane
*Glass fiber cotton high temperature resistance, ageing resistance, coefficient of thermal conductivity is 0.042 W/M * h * ℃, insulation Can good, high hydrophobic, cost-effective;
*Hard foam polyurethane, coefficient of thermal conductivity is 0.027 W/M * h * ℃;
*Our insulation materials are from domestic brand suppliers;

HOME  |  ABOUT US  |  PRODUCTS  |  CASES  |  QUALITY  |  NEWS  |  JOB  |  SERVICE  |  CONTACTS
久久精品国产亚洲av香蕉上下| 狠狠色噜噜狠狠亚洲av| 国产日韩一区二区三区在线观看| 蜜桃一区二区三区视频| 亚洲人妖一区二区三区| 美女网站免费福利视频| 亚洲国产成人久久综合一区| 国产精品久线在线播放| 在线看片免费人成视频福利| 国产免费牲交视频| 97免费人妻在线视频| 亚洲熟妇av乱码在线观看| 欧美综合自拍亚洲综合图| 熟女人妇交换俱乐部| 久久综合久久自在自线精品自| 亚洲精品第一区二区三区| 男人和女人做爽爽视频| 久久天天躁狠狠躁夜夜96流白浆| 亚洲成人av高清在线| 中出内射颜射骚妇| 性猛交ⅹxxx富婆视频| 成在人线av无码免费| 美女禁区a级全片免费观看| 成年性生交大片免费看| 国产精品无码v在线观看| 超碰国产天天做天天爽| 国产精品户外野外| 风韵丰满熟妇啪啪区老熟熟女| 国产色综合久久无码有码| 性一交一乱一伦| 国产精品久久久| 少妇一边呻吟一边说使劲视频| 无码人妻久久一区二区三区| 欧美牲交a欧美在线| 精品国产一区二区三区久久影院 | 天天躁日日躁狠狠躁av麻豆| 国产成人av乱码在线观看| 天天干成人网| 久久九九兔免费精品6| 国产色产综合色产在线视频| 亚洲国产成人一区二区精品区 |