Wuxi metal grade identification Shimin mobile phone QQ mailbox @qq.com Steel classification: steel according to chemical composition classification of carbon steel and alloy steel; according to quality classification, there are three types of ordinary quality grade, high quality steel and special quality steel; Divided into structural steel and tool steel. Classified by chemical composition is the basis, the words "carbon steel" can be added to the latter two categories, ordinary quality grade carbon steel, high quality carbon steel and special quality carbon steel, such as carbon structural steel and carbon Tool steel; similarly, the word "alloy steel" is also the same, such as high-quality alloy steel and special-quality alloy steel, such as alloy structural steel and alloy tool steel. Jiangsu Anjiewen testing items include: stainless steel grade identification and stainless steel material analysis Metal testing, metal testing, stainless steel testing, stainless steel testing, alloy testing, alloy testing, metal composition analysis, metal element testing, material composition analysis, alloy analysis, stainless steel grade analysis, stainless steel grade identification, alloy grade analysis, alloy grade identification. Please call to consult Wuxi Metal Brand Identification http://news.chinawj.com.cn This LED wall lamps is ideal for indoor and outdoor. Up and down waterproof led garage and patio lamps outdoor is not only makes the outdoor wall sconce projects out the beautiful lightness, but also this outside up and down lights for house will make your home stand out.This balcony lights wall outdoor waterproof is ideal for the front doorway, hotel, porch, garden, garage, yard and patio. a great black outdoor wall lights up and down. Outdoor wall mount light fixture is made of high qualiry heavy duty rugged die-casting aluminum, make outdoor porch lights more sturdy, which effectively prevents decorative modern outdoor wall lights from rustiness or corrosion. IP65 waterproof modern outdoor wall sconce design for bad weather conditions. Black exterior led light fixtures design for modern outdoor light daylight. Jiangmen Synno Co., Ltd is a high and new-tech enterprise. Our company specialized in LED green light source. And we are engaged in medium and high-end LED decorative lighting with a whole set of design and manufacture of lamps and lanterns, development of control system and engineering supporting service. Our company is devoted to provide customers with LED application products. Synno has got through ISO9001 quality system certification of SGS of Switzerland, CE certification of European Union, GS certification, ROHS certification and relevant domestic LED lamps and lanterns certification. Double Head Led Wall Light,Aluminum Double Head Wall Lights,Outdoor Double Head Wall Light,Double Head Wall Sconce Light,Double Head Wall Lamp Jiangmen Synno Lighting Co., Ltd. , https://www.synnoled.com