1 paint paint The general owners are only able to see the packaging, true and false is difficult to distinguish, a lot of fakes, especially by cheating big cards. Crack: To go to the store or website to buy, there must be genuine guarantees. 
2 wood solid wood furniture, doors and other panels, that is solid wood. The result is a composite panel with solid wood + interlayer. Crack: "Look at" whether the natural wood grain without stitching, especially to see the bottom of the furniture; Knock Knock "Echo everywhere evenly;
3 switch sockets , sockets, lamps, etc., many are "OEM packaging + counterfeit goods." Crack: "weight" generally good quality switches and sockets are heavier; "look at" the appearance of the gloss is a uniform texture, internal details are delicate;
4 wire and wire as an important material in the renovation of the hidden project, the quality is not good will pit! Crack: "Weight" generally have a good quality wire is heavier; "twist" feel soft, good toughness; "cut" to see if the core is purple and shiny, located in the middle of the insulating layer; 
5 The tile shop signs are all branded, just like the “Apple Store†full of streets. In fact, everything inside is uneven. Crack: "Low water absorption" indicates that the density is of high quality (inverted cup water on the back, if the rapid diffusion is the high water rate, the quality is not good); "look at" brick surface micro-holes; 
6 New environmentally-friendly materials are brand new materials, high-tech necessities, the same as selling counterfeit drugs. Crack: Do not rely on small advertising, especially the kind of blowing effect can be heaven! Finally, remind you to remember to buy materials, we must keep the purchase documents! All-inclusive packages, materials are big brands? Big brands also have low-end products!
Decoration trap
R141B,Dichlorofluoroethane (HCFC- R-141b) is a nontoxic and colorless chemical with small ODP value and excellent chemical stability. Since its physical and chemical properties are similar to those of CFC-11 and CFC-113, it can substitute refrigerant R-11 as foaming agent for rigid or soft PU foam without changing process and equipment, or CFC-113 as metal cleaner and solder- remover as well. Refrigerant R-141b has following characteristics:
1. Chemical Stability: It can be stored at room temperature without decomposition.
2. Dissolvability: It can dissolve in most organic solvents, alcohol and ether. It has excellent compatibility with grease and lubricant, and no obvious effects on most polymers including plastics and rubbers.
3. Toxicity: The toxicity trials conducted by Allied Signal and Atochem indicate that it has no irritant effect on hum an skin and eyes, but inhalation of high-concentrated refrigerant R-141b will cause anaesthetic effect.
4. Flammability: HCFC-141b is inflammable, it should be stored in ventilated place without flame.
R141B Refrigerant,R141B Flushing Agent,Fluido Refrigerante R141B,Gas Refrigerant R141B
ZHEJIANG ZHONGLAN REFRIGERATION TECHNOLOGY CO.,LTD , https://www.uiszl.com