perforated sheet square hole

Poor pretreatment before plating; Bath temperature is too low; Poor quality of additives or too many additives and organic impurities will cause poor bonding. The quality of additives also has an effect on coating foaming. Some additives react incompletely during synthesis and continue to polymerize during long-term storage or use. The additive tends to distort the crystal lattice and cause stress, causing the coating to bubble.

Two: the color of the spray blade is beautiful and generous, and the color can be selected according to the use environment to integrate it with the surrounding environment. Plastic colors include grass green, dark green, black, red, white and so on.

Many people do not know how to choose high quality cut wire, I will give us a detailed introduction. The raw material of cutting wire is divided into: stainless steel cutting wire, copper cutting wire, steel wire cutting wire, copper plated steel wire cutting wire, galvanized steel wire cutting wire, iron wire cutting wire, aluminum wire cutting wire and so on.