国产白嫩视频在线观看,亚洲视频中文字幕,4399视频在线播放,在线观看不卡国产nv,免费A级毛片无码,人人妻人人妻人人草,国产亚洲情侣在线不卡,成人黄18免费视频,国产青榴在线观看视频,黄色一级色欲aV

Technology Introduction

Micro-foaming technology

A thermosetting material, an insert embedded, a high-fine-size and an excellent-performance product, excellent product performance and a strong application in the replacement of a plastic-substituted steel part;

Gas-assisted molding technology

Compressed air, nitrogen, carbon dioxide and other media are used to realize low speed or high speed gas assisted molding technology to fill the whole or local gas of the product, and to realize the excellent structure and performance of the product. The gas-assisted injection molding method can be realized by full injection method and semi-injection method.