Энэтхэгт жижиг эрчим хүч хэмнэх шахмал түлш боловсруулах …
One Stop China Cnc Machining Services. PTJ Shop is a famous china cnc machining manufacturer has rich experience in designing and machining non standard plastic and metal parts Since its establishment in 2007 PTJ Shop has produced more than 300 000 sets of parts and has systematically summarized and filed all the technical points solutions …