feature:

1, Heavy luag hauj lwm cam khwb cia txhuas theem, ntev ua hauj lwm lub neej

2, High pob tshab super ntshiab vials

3, Muab ob npaug as suface

4, tsim ntawm poob siab pov thawj gasket rau ob sab ntawm cov khoom

5. Nrig chav kawm ntawv raug: 0.5mm / m