日韩精品无码中文字幕一区二区_亚洲第一极品精品无码久久_国产免费又色又爽粗视频_日本a级视频在线播放_国产一区二区三区在线视頻

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
国产真实夫妇交换视频| 18处破外女出血在线| 少妇久久久久久人妻无码| 51视频国产精品一区二区| 亚洲中文无码永久免| 亚洲成av人片高潮喷水| 少妇无码吹潮| 精品亚洲成a人在线观看| 国产成人av片无码免费| 美女视频黄频大全免费| 自拍偷拍精品视频国自| 天堂www中文在线资源| av之天堂在线免费看| www国产亚洲精品久久麻豆| 久久精品手机观看| 国产精品a无线| 亚洲av极品视觉盛宴| 美女张开腿让男人桶爽| 日韩爆乳一区二区无码| 国产精品无码一区二区在线| 亚洲男同gay在线观看| 精品人妻av区波多野结衣| 人人玩人人添人人澡欧美| 久久中文字幕人妻丝袜| 婷婷丁香五月中文字幕| 色欲色av免费观看| 成人免费精品网站在线观看影片| 精品熟女碰碰人人a久久| 国产麻豆md传媒视频| 性开放的女人aaa片| 欧美人伦禁忌dvd放荡欲情| 国产99视频精品免视看9| 国产激情久久久久影院| 国产精品va在线观看无码不卡| 久久久久久国产精品免费免费男同| 无码国产69精品久久久久孕妇 | 又大又粗弄得我出好多水| 国产一区二区特别视频| 无码av天堂一区二区三区 | 久久777国产线看观看精品| 亚洲av午夜精品无码专区|