Injection Molding Parts manufacturers Appearance Standard There is no unified international standard for the surface treatment of plastic mold cavity, and there is no relevant standard in my country. The standard for the selection of mold etching in the United States is the Mold-Tech standard, which is widely used in various countries in North America. -Tech has a factory in Dong鈥檊uan City, China, which is dedicated to serving Chinese customers. It can be used as a reference in mold design. Japanese customers choose Ni-hong standard for etching, the depth of Mold-Tech etching and the required de-moulding angle. The degree comparison table is shown in Table 1. The SPI polishing standard is shown in Table 2. The SPI polishing standard has gradually become an international common polishing standard. Table 1 Mold Tech etching depth and required draft angle comparison table Texture depth (Min.)Part Draft(Min.)Mold Tech#(Example) 0.004"1.0掳MT-11000 0.0010"1.5掳MT-11010 0.0012"2.0掳MT-11530 0.0015"2.5掳MT-11020 0.0020"3.0掳MT-11030 0.0025"3.5掳MT-11300 0.0025"4.0掳MT-11130 0.0030"4.5掳MT-11040 0.0035"5.0掳MT-11275 0.0035"5.5掳MT-11090 0.0040"6.0掳MT-11160 0.0045"6.5掳MT-11050 0.0050"7.0掳MT-11265 0.0050"7.5掳MT-11465 0.0055"8.0掳MT-11280 0.0070"10掳MT-11480 Table 2 SPI polishing standard SPI-SPE#Polishng RequestSPI-SPE#Polishng Request AO#1 GessoC0#800 Hone A1#3 GessoC1#600 Hone A2#6 GessoC2#400 Hone A3#15 GessoC3#320 Hone B0#800 GlasspaperD1#11 Gless bead blast B1#600 GlasspaperD2#240 Sandblast B2#400 GlasspaperD3#24 Sandblast B3#320 Glasspaper Injection Molding Parts manufacturers website:http://www.shdindustry.com/injection-molding-parts/