久久久久国产a免费观看rela|无码伊人66久久大杳蕉网站谷歌|国产一区二区精品久久|啦啦啦www在线观看免费视频|男阳茎进女阳道视频大全

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
主站蜘蛛池模板: 久久这里只有精品首页| 99久久精品国产一区二区蜜芽| 亚洲一区综合图区| 免费无码又爽又刺激高潮的动态图| 无码人妻丰满熟妇区10p| 人妻无码久久久久久久久久久| 国产精品99久久不卡| 久久久噜噜噜久久熟女色| 国产精品 亚洲一区二区三区| 东京热久久综合久久88| 国产av激情久久无码天堂| 亚洲a∨国产高清av手机在线| 日本老熟欧美老熟妇| 国产精品热久久高潮av袁孑怡| 成人av在线一区二区三区| 图片区小说区av区| 麻花传媒剧国产mv高清播放| 无码av喷白浆在线播放| 婷婷色中文字幕综合在线| 亚洲欧洲精品无码av| 伊人色综合网一区二区三区| 亚洲熟妇av一区二区三区下载| 奇米777四色在线精品| 国产av夜夜欢一区二区三区| 五月婷久久综合狠狠爱97| 国产超碰人人模人人爽人人添| 夜夜高潮夜夜爽夜夜爱爱| 亚洲国产人在线播放首页| 99久久国产综合精品麻豆| 国产午夜人做人免费视频| 东北老女人高潮大喊舒服死了| 国产人妻精品午夜福利免费| 秋霞电影网午夜鲁丝片无码| 小鲜肉自慰网站| 亚洲爆乳大丰满无码专区| 日日橹狠狠爱欧美超碰| 午夜精品视频在线无码| 秋霞av无码一区二区三区试看| 97无码视频在线看视频| 国产真人做爰视频免费| 天天澡天天揉揉av无码|